I never realised that my dog wagging his tail or yawning may also be signs of stress
Physical activity is good for brain health but polluted air has opposite effect, studies show
No support to alternate theory that virus escaped from laboratory, according to data
Immune cells still organising to fight coronavirus ‘months after inoculation’
Nobel physics prize winner Roger Penrose believes the answer lies in quantum mechanics
With pathogens lurking on every surface, sensor- and voice-activated tech is on the rise
New vaccines should protect you from Covid. It’s unclear if they stop you spreading the virus
As the election enters its final stages, party targeting a seismic win in a once-staunchly Republican state
Research indicates antibodies appear to persist months after infections have resolved
New York orders visitors from Covid-19 hot spot states to quarantine for two weeks
The breakout star of the hit series speaks about vulnerability, addiction and living with HIV
If you’re worried about harmful bacteria getting inside and making you sick, relax
Apps offer useful information but often make people grumpier about their lack of shut-eye
Mosquito-borne disease could reach more of US, China, Japan and Australia in warming world, study shows
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