Jonathan Cedernaes

🧵(1/7) Proud that our new study is finally out after years of work! 🎉 Did you know even short-term #sleep loss 💤 can result in a molecular fingerprint linked to increased future #cardiovascular disease risk? 🫀 ❤️‍🩹 biomarkerres.biomedcentral.com/articles/10.11… Also timing & #exercise 🏃‍♂️ matter ->

I've been hearing a lot about this common concern: "Are kids getting too many vaccines?" It's a fair question. I'm a parent too. And as an infectious diseases physician who directs an antibiotic stewardship program, a big part of my job is stopping unnecessary medications. I'm…

1/ 🚨 Our new paper is online in @Nature ! As its first author, I’m enthusiastic to finally share it with you all!🎉 🧠 We discovered a mechanistic link between cellular energy metabolism and the control of the need to sleep 💤 👉 nature.com/articles/s4158… @OxfordDPAG 🧵👇

New data from the AASM reveals that 74% of U.S. adults report having their sleep disrupted by stress. Anxiety and depression also play a major role, with many struggling to get the rest they need. Sleep and mental health are deeply connected—prioritizing both is essential for…

Last month I explained why aluminum adjuvants are safe: tiny doses, nearly a century of use, cleared by the kidneys like dietary aluminum. Now we have a landmark study of 1.22 million Danish children (births 1997-2018) followed to age 5, with a check to age 8. Result: no…

😴🧠 Insomnia Series Part 1: Overlap with Psychiatric Illness 📅 August 13 | 🕚 11:00 am–12:00 pm EDT 🎙️ Speaker: Andrew Krystal, MD, MS Sleep complaints aren't always what they seem—especially when anxiety, depression, or PTSD are involved. Join Dr. Krystal as he unpacks the…

1/3rd of US teens (>8 million kids) have prediabetes gis.cdc.gov/grasp/diabetes…

🧠💤 Catching up on sleep over the weekend may help reduce anxiety in sleep-deprived youth, according to new research presented at #SLEEP2025 — but moderation is key. Learn more here: hubs.la/Q03wlnY80

New AASM survey data reveals that 3 in 4 adults experience disrupted sleep due to stress—with anxiety and depression not far behind. Mental health and sleep are deeply connected, but the cycle can be broken. Visit the Sleep Education website to learn how to take back your nights…

Cite where this study found what you've stated. @NicHulscher From the study "No increased risk of heart attack, arrhythmia, or stroke was observed post-COVID-19 vaccination." Why lie when we can read 🤣🤣🤣. pmc.ncbi.nlm.nih.gov/articles/PMC11…

Going to bed earlier links with increased moderate-to-vigorous physical activity the next day Shown in 2 independent cohorts, ~26,000 participants w/ @WHOOP, @fitbit sensors @AllofUsResearch @PNASNews @joshleota @MonashUni pnas.org/cgi/doi/10.107…

Not just shingles vaccine, but also RSV vaccine reduces the risk of dementia, which highlights the benefit of revving up the immune system in older individuals nature.com/articles/s4154…

My chart on the history of three infectious diseases —smallpox, polio, and measles — before and after a vaccine was available.

What an absolute pleasure and privilege to submerge in conversation with you, @EricTopol Thanks so much for so elegantly hosting me!

If there were 92 safe & effective vaccine doses, I’d still take them. They’d expose me to maybe 150 carefully chosen antigens - far fewer than what my immune system encounters from a single cold or a walk outside. Every day, we breathe, swallow, and touch thousands of antigens…

Interested in getting better sleep quality? No better resource than Prof Matthew Walker @sleepdiplomat Our conversation erictopol.substack.com/p/matthew-walk… w/transcript; open-access

In recent months, a growing number of robust scientific studies have confirmed that even mild SARS-CoV-2 infection is not biologically neutral in children. Two new studies reveal surprising depth of impact - metabolically and immunologically.🧵

Five weeks high seed oil diet vs high saturated fat Seed oils didn't cause weight gain In fact, "Energy and fat intake appeared to be reduced on the diet rich in polyunsaturated fatty acids although body weights did not change" pubmed.ncbi.nlm.nih.gov/11914742/

Classic example: The 1954 Salk polio trial, which involved ~400,000 schoolkids (half received saline injections). It remains one of the largest blinded RCTs ever done in medicine. 5/ medicine.mcgill.ca/epidemiology/h…

Loud claims are circulating that “no childhood vaccine was ever tested against placebo.” That is flat-out wrong. Here’s what the evidence actually shows. 🧵👇 1/

Eric - I'm a huge fan of your work, but let's not forget this recent meta analysis showing that there is NO safe level of alcohol consumption associated with cancer risk. pmc.ncbi.nlm.nih.gov/articles/PMC10…