Time changes make many people feel tired, irritable, and unable to sleep.
Those with the condition could take several weeks, months, or even years to properly recover.
Margot Gage Witvliet went from being healthy and active to fearing she was dying almost overnight. An epidemiologist, she dug into the research to understand what's happening to long-haulers like her.
An overactive immune system may be behind some of the virus's long after-effects.
What might look like a mild case of COVID-19 could actually be a bacterial infection from a tick bite, with potentially debilitating symptoms if it goes untreated.
If you want to boost your energy and mood and feel more alert, get moving instead of getting coffee.
A new review assesses the potential long-term psychological impact of COVID-19.
Feeling tired after endless Zoom meetings? You're not alone. Research suggests video calls increase our cognitive load compared with face-to-face meetings.
The adverse symptoms some people experience after adopting the ketogenic diet is known as the "keto flu".
It takes a period of mental adjustment to get over such big changes but optimism and structure could help.
Pernicious anaemia is a lifelong condition that affects nearly 5 in 100,000 people in the UK.
Low pay pushes drivers to work extremely long hours, causing more crashes and more traffic deaths.
For a full picture of any given situation, we must be able to read it, understand it and anticipate what could happen next.
It's not just elite sportspeople who get muscle cramps. If you've ever experienced one, you'll know how painful they are. But why do we get them, and is there anything to be done?
Taking a power nap on a night shift can leave you feeling groggy. And eating a large meal can reduce your alertness. So, what's a tired shift worker to do to make it through the night?
Children's sleep problems can affect not only their own wellbeing, but that of their parents. Helping parents manage these problems can also reduce their own risk of depression.
Feeling tired and out of energy? Talk to your GP about checking your iron level.
Nearly 60% of pilots say they know of colleagues who are tired at work.
Extreme feats of human endurance require extreme measures to stay alive
As Olympic cyclist Sarah Storey faces the greatest challenge of her career, she can draw on recent findings that the mental state for coping with extreme fatigue is more achievable than we thought.