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Does cannabis raise the risk of cancer?
By Anirban Mukhopadhyay published
Scientists are piecing together how cannabis smoke may disarm the body's immune arsenal while activating cancer-linked pathways. But the potential links aren't yet completely understood.

Best fitness trackers for beginners 2025 — From Apple Watch to Garmin Forerunner 165
By Lloyd Coombes published
Buying guides These are the best beginner-friendly fitness trackers you can buy in every category, from Apple Watch and Garmin Forerunner 165 to Amazfit Active

Hiker picks up venomous snake, dies after bite triggers rare allergic reaction, authorities say
By Patrick Pester published
Authorities say a man died after being bitten by a venomous snake in Tennessee. The snake is believed to be a timber rattlesnake, which can have extremely potent venom, but the man likely died due to a rare allergic reaction.

A man's preference for 'soft' bacon may have given him brain worms
By Nicoletta Lanese published
A man in the U.S. reported worsening migraine symptoms. It turned out that a pork tapeworm had invaded his brain.

Keratin extracted from sheep's wool repairs teeth in breakthrough
By Skyler Ware published
Keratin extracted from sheep wool has been found to help protect human teeth. It could be coming to your dentist’s office soon.

New brain implant can decode a person's 'inner monologue'
By Skyler Ware published
A new brain-computer interface can decode a person's inner speech, which could help people with paralysis communicate.

FDA panel has cast doubt on whether antidepressants are safe in pregnancy. Here's what the science actually says.
By Nicole Amoyal Pensak, Andrew Novick published
Decades of research show that SSRIs can be safely used during pregnancy. Meanwhile, untreated depression during pregnancy is associated with poor health outcomes like preterm birth and preeclampsia.

Vaccines hold tantalizing promise in the fight against dementia
By Anand Kumar, Jalees Rehman published
A prominent Nature study and related research raise the possibility that vaccines may have a broader role in experimental therapeutics outside the realm of infectious diseases.
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