Author's posts
What bodybuilders do to their bodies — and brains
For pro bodybuilders, biggest is best onstage. Steroid use is rampant. But creating that bulk can disrupt nearly every system in the body.
How Novavax is different from other coronavirus vaccines
Novavax is new in the covid-fighting arsenal, but it uses the same technology as more established vaccines. Here’s how it differs from Pfizer, Moderna and Johnson & Johnson.
Understanding omicron’s many mutations
Scientists are just beginning to untangle omicron’s mysteries, but the locations of mutations in key places provide some clues to how fast it spreads, how well vaccines will work and how sick it might make us.
