A Decade-Long Experiment Is Unlocking the Mysteries of the Ocean’s ‘Deep Reefs’

Testosterone Prescriptions for Women Surge Amid Pharmacy Access Barriers. A recent analysis found that testosterone prescriptions for women have nearly tripled in the past few years. AzmanL · E+/Getty A recent analysis found that testosterone prescriptions for females increased 146% between January 2023 and July 2026. There are currently no FDA-approved testosterone products specifically for females, which can create dosing and prescription access challenges. Current clinical guidance supports testosterone therapy for hypoactive sexual desire disorder (HSDD) in postmenopausal females. More research is needed to determine whether testosterone provides benefits for other menopause-related concerns, such as fatigue, mood, and muscle.

Ultra-Processed Foods Linked to Higher Risk of Multiple Diseases, Death. New research found that consuming more ultra-processed foods is linked to an increased risk of multiple health conditions. LauriPatterson/E+/Getty Images A large study has found that eating more ultra-processed foods (UPFs) was linked to a higher risk of disease and early death. The risk of chronic diseases increased with higher UPF consumption, but reducing intake may help mitigate risk. Nutrition experts suggest making whole and minimally processed foods the basis of your diet. Choosing healthier options, cooking for yourself, and avoiding fast food can all help reduce your UPF intake..

Insomnia Isn’t Just Exhausting — It May Raise Your Risk of Stroke, Dementia. Recent research has found that chronic insomnia may increase the risk of stroke, dementia, and depression. ljubaphoto · E+/Getty A recent review has found that insomnia may be associated with an increased risk of stroke and hospitalization. The researchers also found evidence of an association between insomnia and depression, suicidal behaviors, and dementia. These findings add to growing evidence that insomnia may be linked to health risks beyond poor sleep and impaired daytime functioning. Insomnia may do more than leave you tired. A review published in Sleep.

Letter From the Editor-in-Chief: Is Worrying About Sleep Keeping Us Awake. A recent study found that a lack of REM and deep sleep is linked to higher risks of dozens of diseases. Credit: Getty A new study analyzing wrist tracker data from 95,000 people found that higher amounts of REM and deep sleep were linked to a lower risk of 83 diseases combined, including dementia, hypertension, and Parkinson’s. Nearly 70% of Americans say anxiety disrupts their sleep – and for some, the sleep trackers meant to help may be making it worse, a phenomenon researchers call orthosomnia. Healthline’s Editor-in-Chief Robin.

Low-Energy Diet Plus Structured Exercise Reverses Early Onset Diabetes. A low-energy diet combined with a structured exercise program led to early onset type 2 diabetes remission. FreshSplash/E+/Getty Images A new study found that a low-energy diet and exercise reversed early onset type 2 diabetes in half of the participants. This is important because early onset diabetes can lead to earlier health decline and other complications. Experts suggest eating a good-quality diet and reducing calories by about 500–700 daily to lose weight. Aim for 150 minutes of moderate-intensity physical activity each week. A new study has found that a combination.

Best Mosquito Repellents for Your Yard: What Works and What Doesn’t (2026). After years of testing repellents, traps, and sprays, I found a few ways to keep the bugs at bay—and plenty that aren’t worth the effort.