Nutrition is a good example of how a long lasting disregard in education and learning systems has led to huge medical costs for individuals and societies nowadays. The obesity pandemic calls for urgent action and policy changes in the field of nutrition policies and learning goals for children and adults. Medical doctors have mostly discarded that it is also their responsibility to provide medical guidance on nutrition, as this is highly controversial at times and asks for behavioural changes of the patient. School teachers see little scope to act on the issue due to increasing demands in fields of literacy, numeracy, problem-solving, digital and communication skills. Hence, the hope is to fill the instruction and learning gaps with a hybrid approach of nurses taking on both roles and communicate with children as well as adults alike. This is a tough challenge for these persons, but hopes a high that they can make a significant improvement to the nutrition competences of individuals, pupils, their parents and specific target groups.
The starting point is to recognize that there is an issue with nutrition. The next to establish the best evidence and based on this to develop a curriculum for the nurses to be well-prepared for the challenge in the field. Even with the differentiation of different levels of competences, the learning has to be rather encompassing several related fields as well. Individual, behavioural as well as society-level factors like biology, technology, religious beliefs, economic and social factors determine nutritional choices and consumption. Just because there are so many factors to consider does not justify to keep nutrition out of school curricula for example. Nutrition is a fine example of a topic which links disciplines across a broad range. It is a tasty, at times spicy mixture of issues to learn and apply. The former is the beginning, the latter the real challenge which needs ample and repeated guidance or coaching. (Image: Extrait of Abraham Mignon, 1640-1679, Undergrowth with flowers, animals and insects, MRBA Brussels) 
Nutrition Policy
The evidence on nutrition policies has accumulated a series of policy recommendations based on the best available evidence. The German Institute of Human Nutrition has presented these results repeatedly not only to the scientific community, but also to the interested public at the Science Week or the Long Night of Science. Their leaflet on the tools to improve our human nutrition in market economies highlights “nutrition competence” as a key component of a broad strategy to improve our food and subsequently health. Nutrition goes beyond the biological ingredients of food to include basic understandings of human metabolism including the times and timing of meals. This competence has to be transmitted to preschoolers, pupils as well as adults to stem the waves of obesity (ARTE Docu). Learning how to manage your own nutrition is a crucial competence to strive and survive. In schools it can have substantial impacts on performance and inequality of opportunities as well.
The science-based policy recommendations propose to alter the structure of costs, for example via tax reductions, in favor of healthy food. Plain water should be substantially cheaper than sweet beverages or alcoholic drinks. Nuts and proteins from vegetables fall in the same category as plain water. It is in the longer term interest of all of us that schools, canteens at work places or homes for the elderly offer also healthy nutrition at least as a daily option. More sustainability in food production is last, but not least part of nutrition policies. A lot to chew on to improve nutrition.
Food Future
What do we have for dinner today, tomorrow or in 10 years from today? Research Institutes presented some of their insights based on solid evidence in the open door event in Berlin. The 5 years of the project “food4future” are over and my glance through some of the results suggests that we shall have many more proteins, most from vegetable sources, on our plates. The arguments for improved sustainability are rather compelling. The taste of these products that currently have higher amounts of bitter taste might be solved. Similarly sea food beyond fish like halophyte will enter our diet. The salty taste can be incorporated in meals in which we add salt or other spices anyway. These elements might make it possible to feed the 8 billion people on our planet. We probably also need to include protein rich insects in the meal plans of the still growing human species. It appears like a rather long shot into the future of nutrition, but if we do not think ahead and start the change in our mindsets we shall be badly prepared for the future and more people will decide to seek food in other places of the earth rather than stay hungry. It also helps us to refocus our priorities in nutrition and aim for a better balance of the pleasures of eating and sustainability. The issue of food for future generations starts with food for thought in the abundantly nourished Northern parts of the planet. (Image: AI Copilot, Prompt: 2 couples enjoy eating a meal of halophytes and insects, 2024-6-25) 
Science Transparent
Every year there is only one special big event (Lange Nacht der Wissenschaften) to make science more transparent to the population at large. Mostly hidden behind impressive walls and buildings guarded by porters,
science is not as transparent for the large public as it would like to be. In general people are rather intimidated or feel quickly out of place if scientist start to “explain” in lengthy formats their topics, ideas, questions and intermediate solutions. Even if the distributed open science fair is running only from 5 p.m to midnight, there are lots of things to learn and look into.
The website lists 1500+ sessions, 230 are in English language. You have to be selective or spread your interest over several years. I chose to start with, maybe, the toughest choice the Weierstrass-Institute near the Naturkundemuseum. Several projects of applied mathematics and stochastic processes were exposed and explained in more or less transparent and/or understandable form to the audiences. The talk by Julian Kern “Why chance doesn’t happen by chance” had a nice interactive format with “Kahoot-quizzes” and gave a good introduction, why it is useful to understand, statistics and stochastic processes in fields from biology, physics to social phenomena. The White board replaced already the black board and chalk.
The open doors policy, at least one day per year, raises interests and awareness for topics few people would only think that they existed already. The volume “Mathematics and Society” (Wolfgang König ed. 2016) is something I shall follow up on eventually. There are lots of applications of mathematics to social phenomena (time seen from the perspective of generations for example, image below from talk), which we have a hard time to come to grips with without the aid of mathematicians. 
Violence Potential
The book (editor Sabrow 2023) and the exhibition “Gewalt gegen Weimar. Zerreißproben der frühen Republik 1918-1923” need a broad European audience. The violence, which in the medium term destroyed the newly founded democracy of the Weimar Republic in Germany, is linked to the immediate aftermath of the 1st world war. The relatively calm abolition of monarchy in Germany did in no way prevent the eruption of violence within the new democracy. Extreme forces prepared in organized ways (Organisation Consul) and some in open public discourses the potential for the use of violence. Armaments left over from war equipped the Freikorps Movements and the potential to use the weapons was present at all times in the aftermath of WW1 in Germany. The contributions to the volume provide a detailed account of these 5 crucial years when democracy was able to defend itself against all odds. The strategies to take control of the country were built on a violent rhetoric which prepared the ground to put violent talk into action later on. This spiral of violence is hard to de-escalate once started. However, democracies have to foster ways to calm the spirits in periods of high potential violence. Elections as well as the campaigns before are the arms of democratic change. They should be used as such to pave the way to compromise.
Composing Assisted
Before the existence of digital composition tools composers were assisted by “Kopisten”. These persons rewrote the original draft of a composition into a “proper” version of the original document. Musicology has a tough time to deal with deviations from the original. It needs to be clarified which is the final and authorized version. In some instances this is far from evident. Just as an example Robert Schumann made ample use of the assistance of Kopist Otto Hermann Klausnitz (cf Nr 6), sometimes for the preparation of the composition, the finalized versions or the explicit drafting of different voices. Klausnitz himself was a flautist in Leipzig (Gewandhausorchester) and a conductor in Duesseldorf. Overall the debate is still going on, whether the composer’s draft or in many instances the Kopist’s version of the composition (authorized or not) prevails. In the age of AI, which is highly influential in modern music, such questions will most likely be intrinsic to the process of composition as well. AI is influential in evening out rough edges. Anette Mueller (2010) has done a great job to make this work of “Kopisten” much more transparent and her concluding chapter is programmatically entitled “Komponist und Kopist- Aspekte einer produktiven Kooperation”. (Image Mueller, A 2010 p. 340).
Betting vice
Betting is considered a vice. The industry has moved from the local bookmakers to the internet and is spread across countries and continents. Some legal advisers have classified betting as the fastest growing vice industry and it is about time to launch a wake up call for more oversight of what is going on in the sector. As betting like gambling seems to be working in conjunction with other addictions the potential of cumulative risks is quite high. Our brains tend to wire things together which frequently occur jointly. It is difficult to disentangle these co-occurrences later again. The major angle of attack is prevention.
Health journals start warnings of the detrimental effects persons and observe that the industry follows similar strategies as the tobacco industry to address as many people as possible. And this is very successful and profitable for them. Hence, prevention strategies should also follow what has been applied to smoking like the ban from restaurants and bars as well as the restrictions on advertising. We will have to accept that betting and gambling should not be as easily accessible as it is currently. Age restrictions have to be applied stringently. I bet this will take quite a long time until Europe and elsewhere the regulations will change. Some of the young get interested in even more stimulating activities like exploring arts (image below class at Neue Nationalgalerie Berlin 2024-6) rather than betting on who is going to win the Euro 2024 football matches.
Smoke Gamble
Smoking is like a gamble. Your input is your health and money. This is not including those who might rely on you or family relationships that might suffer one way or another. The other link has gambling at its source and smoking goes along with the continuous risk taking or the belief to be able to master the risks involved with both forms of potential addictions. Research has accumulated evidence that in fact both smoking and gambling occur frequently in combination with each other. Taking risks against the odds of suffering losses, maybe only in the medium or longer run perspectives like for health seems acceptable for those people. Society has put rather high taxes on both activities to discourage people and invests in prevention of addictions. However, it does not have substantial effects on people as smoking remains around the same level and gambling (poker online) or betting on sports (Euro 2024) are rising rapidly. Vaping and internet gaming have broadened the spectrum of addictive behaviors mostly for younger persons and young adults. The risks are manifold and increasing in their addictive potential since the smartphone is always in some pocket just like the smoking device. The behavioral turn in the social sciences has been well understood by the industries as well. The stakes for human development are high in this endeavor to offer young people equal opportunities at entry into adulthood.
Cannabis Alcohol
The use of cannabis and/or alcohol is yet another question where we are used to ask questions in the form of: either the or the other? Over generations we have gotten used to no longer ask for each do you or don’t you. With the controlled liberalization or legalization of cannabis in some Western European states the framing of the question is more like you do the one or the other, particularly for many younger persons.
Decriminalization of both drugs in small quantities is apparently reducing crimes link to drug use and drug dealing. On the other hand, the thresholds for doing drugs are lower than they used to be. In inner cities it is therefore no longer a surprise to find both kinds of drugs with addictive potential next to each other (see image below). We know that it is a slippery road from regular drug use to uncontrolled dependency and personal disaster. For cannabis a study published in the Lancet (Petrilli et al. 2022) added the importance of the potency of tetrahydrocannabinol to the estimate of risks. This is similar to the studies that differentiate the level of alcohol in drinks consumed. The higher the concentration, the higher the risks. A simple proportional relationship prevails in both drugs. The cumulative effects of consuming both together might have quite surprising non-linear effects.
The big issue is the risks of mental health related to these drugs. However, the causal direction is not easy to detect. Drugs induce mental health problems, but also mental health issues lead to drug abuse. This remains quite a puzzle for scientists to disentangle.
Additionally, the link to smoking and addiction to nicotine is a frequently observed corollary. Studying just one single source of health problems and addiction might be too restrictive to learn about the whole set of causal effects and casualties. For the time being we seem to jump from one field of attention to the next one ignoring the multiple interrelated factors at hand. 
Smoking Vaping
Both smoking and vaping are big business. Nicotine is well known for its addictive capacity. Once started, it is very hard to give it up again. For many decades we devote considerable efforts and costs to encourage people to give up on smoking or, better, not to start smoking in the first place. The young are particularly vulnerable as damages persist for a longer time. Progress has been made to reduce passive smoking of children and people in restaurants, at work and public spaces. The relatively recent trend of vaping instead of smoking is considered less harmful, but scientific long-term evaluations, whether these effects are lasting for several years, are still missing.
A repeated cross-section study in England (Tattan-Birch et al. 2024) has revealed that the declining trend of nicotine use has already been reversed among youth due to the rise in vaping. Vaping seems to move from the fashionable niche product to the popular mainstream among youth. The addicts are only cost-sensitive on the margin. The relative prices of smoking and vaping might play a role to put people on different health trajectories. The question is not between either smoking or vaping, but for some it is both, although it should be none of both. The question of smoking yes/no is likely to be framed as either vaping/or smoking. The re-framing of the question shows the harmful potential in the longer run. We shall have a hard time to convince people and particularly youth not to be tempted by either/or but to focus on their long-term health trajectory and potential. (Image: Extrait from Arnold Böcklin, Self-portrait with death playing the violine 1872, Alte Nationalgalerie Berlin) 