Symptoms
Symptom guide
What could be behind the things you're noticing, what a doctor may check, and the warning signs that mean you shouldn't wait.
Everyone
- Trouble concentrating / brain fogToo little or poor-quality sleep · Low mood · Vitamin B12 deficiency
- Premature greying of hairGenetics and family history · Smoking · Vitamin B12 deficiency
- Hair fall / thinningPattern hair loss · Heavy shedding 2–3 months after illness · Thyroid disorders
- Low energy / fatigueNot enough sleep · Low mood or depression · Iron-deficiency anaemia
- Low stamina / libidoPoor fitness. Erections depend on healthy blood flow · Stress · Side effects of medicines
- Aches from desk / laptop workStaying in one position for long stretches · Low overall physical activity · Screen or desk set-up that forces awkward postures
- Eye strain from screensLong screen sessions without breaks · Uncorrected vision · Glare
- Trouble sleepingIrregular sleep and wake times · Bright light and screens late in the evening · Caffeine within about 9 hours of bed
- Stress & anxietyOngoing pressure at work or in life · Poor sleep · Too much caffeine
- Unwanted weight gainEating more than you burn · Low activity or a desk job · Short sleep
- Bloating & digestionLow fibre or low fluid intake · Eating fast · Lactose intolerance
- Acne & skin issuesHormonal changes and genetics · A high-glycaemic diet · Heavy
- Getting sick oftenAdults normally catch 2–3 colds a year · Short sleep: people sleeping under 6 hours were more likely to catch a cold · Chronic stress
- Joint / knee painOveruse · Excess body weight adding load · Weak muscles around the joint
- PalpitationsCaffeine · Poor sleep · Anaemia
- Dizziness / light-headednessNot drinking enough or skipping meals · Standing up quickly · Anaemia
- Always feeling coldIron-deficiency anaemia · Underactive thyroid · Low body weight
- Dark circles under the eyesGenetics and natural pigmentation · Thin skin under the eyes · Allergies and eye rubbing