The hottest Preventive Medicine Substack posts right now

And their main takeaways
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Top Health & Wellness Topics
Spyderdoc Newsletter • 19 implied HN points • 25 Jan 26
  1. Shoveling snow can suddenly overload the heart because it combines heavy arm work, breath-holding, and cold air that raise blood pressure and heart rate.
  2. Large studies link heavy snowfalls to spikes in heart attacks and cardiac deaths, especially in men and people with underlying risk factors.
  3. If you have heart disease or risk factors, arrange for someone else to remove the snow. If you must shovel, go slowly, dress warmly, push or use a snowblower instead of lifting, and stop immediately for chest pain, shortness of breath, dizziness, or other warning signs.
Neuro Athletics • 16 implied HN points • 24 Nov 25
  1. Frequent sauna bathing (about 4–7 times per week) and longer sessions (roughly 15–30+ minutes) are strongly associated with much lower risks of sudden cardiac death, coronary and cardiovascular mortality, and all‑cause mortality.
  2. High‑frequency sauna use was also linked to large reductions in dementia and Alzheimer’s risk—around a two‑thirds lower risk in the highest‑use group—even after adjusting for many common risk factors.
  3. There are plausible protective mechanisms (exercise‑like cardiovascular effects, better endothelial function, and heat‑shock protein induction) and some trial evidence of added benefits, but the main long‑term data are observational from Finnish men so causation isn’t proven and saunas may not be safe for people with certain heart or blood‑pressure conditions.
Eat Shit and Prosper • 199 implied HN points • 29 May 23
  1. HIV made the jump to humans multiple times, mainly through eating infected primates. Understanding this helps us see how complex diseases spread.
  2. Certain natural substances, like a sugar-binding protein in bananas, might help reduce HIV's infectivity. It shows how nature can provide unexpected solutions.
  3. Being overly cautious or clean can backfire when it comes to health. Embracing natural behaviors might actually be better for preventing diseases like HIV.
Spyderdoc Newsletter • 19 implied HN points • 06 Jun 25
  1. Inspiration can come from anywhere, and it has no limits. It's important to embrace new ideas and experiences to grow.
  2. Preventive medicine is key to living a long and healthy life. Taking care of our health today helps us avoid problems in the future.
  3. Traveling broadens our horizons. Experiencing new cultures and places teaches us valuable lessons and ignites our curiosity.
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Tessa Fights Robots • 35 implied HN points • 06 Dec 24
  1. It's important to pay attention to fungal and parasitic infections as they can affect our health in many ways. Focusing on prevention through diet and natural remedies can help.
  2. The idea of looming medical crises often comes up, and we should think critically about the information presented to us. Staying informed allows us to make better decisions.
  3. Finding ways to manage stress and include humor in our lives is essential. Laughter can be a powerful tool for our mental and emotional well-being.