Sleep is as important to health as nutrition and physical activity. Yet, in the modern UAE lifestyle - with long working hours, screen time, and social activities - many adults regularly get less sleep than recommended.
How Much Sleep Do You Need?
The American Academy of Sleep Medicine (AASM) and the National Sleep Foundation recommend:
| Age Group | Recommended Sleep |
|---|---|
| Newborns (0–3 months) | 14–17 hours |
| Infants (4–12 months) | 12–16 hours |
| Toddlers (1–2 years) | 11–14 hours |
| Preschool (3–5 years) | 10–13 hours |
| School age (6–12 years) | 9–12 hours |
| Teenagers (13–18 years) | 8–10 hours |
| Adults (18–64 years) | 7–9 hours |
| Older adults (65+) | 7–8 hours |
Health Consequences of Poor Sleep
Research consistently links insufficient sleep with serious health problems:
Cardiovascular Disease
A 2011 meta-analysis published in the European Heart Journal (Cappuccio et al.) found that short sleep duration (less than 6 hours) was associated with a 48% increased risk of developing or dying from coronary heart disease and a 15% increased risk of stroke.
Obesity and Diabetes
- Sleep deprivation disrupts hormones that regulate appetite (ghrelin and leptin), increasing hunger and cravings for high-calorie foods
- A study by Spiegel et al. (2004) showed that sleeping only 4 hours for two nights reduced leptin by 18% and increased ghrelin by 28%
- Chronic short sleep is associated with insulin resistance and increased risk of type 2 diabetes
Mental Health
- Insomnia is both a symptom and a risk factor for depression and anxiety
- The relationship is bidirectional - poor sleep worsens mental health, and mental health conditions disrupt sleep
- A 2017 meta-analysis in Sleep Medicine Reviews found that treating insomnia improves depression symptoms
Immune Function
- During sleep, the immune system releases cytokines that help fight infection and inflammation
- Chronic sleep deprivation impairs immune response, making you more susceptible to infections
- A 2015 study in Sleep (Prather et al.) found that people sleeping less than 6 hours were 4.2 times more likely to develop a cold when exposed to the virus
Cognitive Function and Safety
- Sleep deprivation impairs attention, concentration, reasoning, and problem-solving
- Drowsy driving is as dangerous as drunk driving - the National Highway Traffic Safety Administration estimates that drowsy driving causes thousands of accidents annually
Common Sleep Disorders
Insomnia
- Difficulty falling asleep, staying asleep, or waking too early
- Affects up to 30% of adults at some point
- Can be acute (short-term) or chronic (lasting more than 3 months)
Obstructive Sleep Apnoea (OSA)
- Breathing repeatedly stops and starts during sleep
- Symptoms: loud snoring, gasping during sleep, excessive daytime sleepiness, morning headaches
- More common in people who are overweight, have a large neck circumference, or are male
- Untreated OSA significantly increases cardiovascular risk
- Diagnosis requires a sleep study; treatment may include CPAP therapy
Restless Legs Syndrome
- Uncomfortable sensations in the legs with an urge to move them
- Symptoms worse at rest, particularly in the evening
Evidence-Based Tips for Better Sleep
NICE and the American Academy of Sleep Medicine recommend:
- 1Maintain a consistent schedule: Go to bed and wake up at the same time every day, including weekends
- 2Create a dark, cool, quiet bedroom: Use blackout curtains, keep the room at 18–20°C
- 3Limit screen time before bed: The blue light from phones and tablets suppresses melatonin. Stop screens at least 30–60 minutes before bedtime
- 4Avoid caffeine after midday: Caffeine has a half-life of 5–6 hours
- 5Avoid alcohol before bed: While alcohol may help you fall asleep, it disrupts sleep quality and REM sleep
- 6Exercise regularly: But avoid vigorous exercise within 2–3 hours of bedtime
- 7Manage stress: Relaxation techniques, journaling, or mindfulness can help
- 8Avoid large meals before bed: Eat your last substantial meal at least 2–3 hours before sleep
- 9Reserve the bed for sleep: Avoid working, eating, or watching TV in bed
When to See a Doctor
Consult your doctor if:
- You regularly take more than 30 minutes to fall asleep
- You wake frequently during the night and cannot get back to sleep
- You snore loudly or have been told you stop breathing during sleep
- You feel excessively tired during the day despite adequate time in bed
- Sleep problems persist for more than 4 weeks
- Poor sleep is affecting your work, relationships, or daily functioning
This article is for informational purposes only and does not replace professional medical advice. Always consult your doctor for personalised guidance.