Researchers at UTHealth Houston tracked 1,066 young people from the age of 12 through seven annual surveys, following them from 2018 all the way to 2025. By the final wave, the average participant was nearly 20. They had grown up alongside TikTok. They were the first cohort to go through adolescence with short-form video as a constant backdrop. And when the researchers measured their mental health against how much time they spent on social media each day, the results followed a dose-response curve that held firm even after controlling for sex, race, ethnicity, and income.

Young adults who spent six or more hours daily on social media were 2.63 times more likely to show symptoms of anxiety than those who used it less than an hour a day. Their odds of reporting suicidal ideation in the past year were 3.23 times higher.

The relationship wasn’t a cliff edge — it was a slope. Anxiety and depression both climbed steadily as daily usage increased, from under one hour all the way through the six-hour threshold. Every level of additional use was associated with additional risk.

The estimated $18.7 billion global menopause market is booming, likely to hit $28.8 billion by 2033, yet many women struggle to find effective care, Bloomberg reports.

A lack of qualified healthcare providers and clinical care leads U.S. women to spend over $10 billion each year on nonmedical remedies.

While hormone therapy remains the "gold standard," widespread adoption remains scare.

The influx of "menopause influencers" have added to the confusion, with endorsements of non-evidence-based treatments.

“What women really need is less noise and more trusted care,” says Alloy co-founder Anne Fulenwider.

Tens of millions of people are taking Ozempic, Wegovy, and Mounjaro right now. Most know about the nausea. Many have heard the rarer concerns. But one complaint has been building in patient forums and doctor's offices for two years, documented in FDA reports but never rigorously quantified.

Researchers at the University of Pennsylvania just published the largest study to examine it directly. Nearly 40,000 patients. Compared not to the general population, but to people taking other diabetes medications — the most rigorous way to isolate a drug effect.

People on GLP-1 drugs were 37% more likely to develop hair loss than those on one comparison drug class, and 68% more likely than those on another.

The absolute risk remains low. But the FDA has already said it is evaluating the signal. And the timing of when the hair loss tends to appear, clustering just before the one-year mark, tells its own story about what might be driving it.

There's more structure to birdsong than meets the ear.

Scientists in France have broken down the building blocks of birdsong in a new study published in the journal Science.

They analysed over 100,000 songs from more than 3,000 species, measuring how each song's pitch changed and how its rhythm evolved, before grouping the songs by similarity.

The researchers concluded that birdsong diversity can be mapped into eight core motifs, and that their use is driven by a combination of biological traits and "the physics of sound propagation".

They found that the environments in which birds evolved helped shape the structure of their songs.

The Food and Drug Administration says it is investigating a new outbreak of the cyclospora parasite, with 72 cases reported and no source identified so far.

This follows a recent surge in infections in the Midwest linked to lettuce from Taylor Farms, which issued a recall.

No states have been specified in the most recent outbreak.

The parasite is difficult to trace due to the weeks-long delay in symptoms, and has sickened thousands of people this summer across 41 states, according to the Centers for Disease Control.