Do Sleep Trackers Work? Accuracy, Sleep Scores and Orthosomnia (UK)

Sleep trackers work well for some things and poorly for others. In lab studies, most rings, watches and bedside devices spot sleep accurately and give a fair estimate of total sleep time.

How to Boost Your Immune System: What Actually Works (UK)

You can’t boost a healthy immune system beyond normal, and no pill or food does it.

Foods That Help You Sleep: What the Evidence Says (UK)

No single food will knock you out, but a few have small studies behind them: kiwi fruit, tart cherry juice, oily fish, milk and a carb-based evening meal eaten a few hours before bed.

Waking Up With a Headache: Causes and What to Do (UK)

Waking up with a headache is usually down to your sleep or the night before: too little or too much sleep, dehydration, alcohol, missing your usual caffeine, teeth grinding or an awkward pillow.

Sleep Talking: Why It Happens and How to Stop It

Sleep talking (somniloquy) is talking, mumbling, laughing or shouting in your sleep without knowing it. It’s very common and usually harmless: two in three adults in one large survey said they had done it.

Jet Lag: How to Beat It, East vs West and How Long It Lasts

Jet lag is the poor sleep, daytime tiredness and foggy head you get when your body clock is out of step with a new time zone.

Sleepwalking: Causes, What to Do and When to Worry (UK)

Sleepwalking is when you get up and move about while asleep, usually early in the night. It’s common in children, who mostly grow out of it by their teens.

Hot Flushes: Causes, Triggers and What Really Helps (UK)

Hot flushes are sudden waves of heat in the face, neck and chest, often with sweating, a racing heart and redness.

Tired After Eating? Why It Happens and How to Stop It

Feeling tired after eating is common and usually harmless. Your body clock dips in the early afternoon, and a large meal, a heavy or very starchy lunch, or a drink with it deepens that dip.

Stress Rash: What It Looks Like, Causes and How to Treat It (UK)

A stress rash is usually hives: raised, itchy welts or blotches that can appear on the face, neck, chest or arms when you’re stressed or anxious. It’s usually harmless and normally fades within a few days.

Ceremonial Cacao: What It Is, Benefits, How to Make It and Is It Safe? (UK)

Ceremonial cacao is pure, minimally processed cacao: whole beans ground into a paste that keeps all their natural fat, usually single origin and melted into a warm drink. It isn’t an official grade.

Emotional Eating: Why It Happens and How to Stop (UK)

Emotional eating means eating to soothe or distract yourself from feelings such as stress, boredom, sadness, loneliness or tiredness, rather than because your body needs food. Almost everyone does it sometimes.