Biology

Toothpaste from hair protein repairs enamel.

New toothpaste made from hair protein could repair and protect damaged teeth.

New drug shows promise for treating alcohol use disorder

Study finds tolcapone boosts brain activity, improves control, and reduces drinking.

Helping Others Slows Cognitive Decline in Older Adults, Study Finds

Frequent helping behaviors slow cognitive decline by 15%-20% in middle-aged and older adults.

Human eggs may avoid mitochondrial mutations with age

Human eggs may avoid age-related mitochondrial mutations, a small study suggests.

Universal antiviral therapy shows promise in animals.

New antiviral therapy inspired by rare mutation prevents viral replication in animals.

Sucralose may hinder cancer treatment.

Study suggests sucralose may reduce cancer immunotherapy effectiveness by altering gut bacteria and lowering arginine levels.

Human waste biochar could solve fertiliser shortages

Human waste-derived biochar could solve fertiliser shortages and cut pollution, a study finds.

New human ancestor discovered in Ethiopia

Fossils reveal new human ancestor from 2.8-2.6M years ago in Ethiopia.

Climate change threatens bryozoans, key marine architects

Study warns climate change threatens bryozoans, crucial marine organisms.

Dolphins and whales engage in playful interactions.

Researchers find dolphins and whales often engage in playful interactions, with whales responding positively.