Eating Well on a South Indian Plate
You do not need to abandon rice, sambar and curd to eat healthily. Changing proportions, grains and cooking methods achieves far more than importing a foreign diet.
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Chronic short sleep raises the risk of diabetes, heart disease, obesity and depression. It is the health behaviour most consistently sacrificed and least often discussed.
What happens during sleep
Sleep is not passive. During it the brain clears metabolic waste, consolidates memory, and regulates the hormones controlling appetite, stress and glucose. The body repairs tissue, produces growth hormone and regulates immune function.
Adults need seven to nine hours. Consistently getting under six is associated with higher rates of type 2 diabetes, hypertension, coronary disease, obesity, depression, impaired immunity and, over the long term, cognitive decline.
Sleep hygiene that works
- Fixed wake time every day, including weekends — this anchors the whole rhythm more effectively than a fixed bedtime
- No screens for an hour before bed; blue light suppresses melatonin
- Keep the bedroom dark, quiet and cool
- No caffeine after 2 pm — it has a half-life of five to six hours
- Avoid alcohol as a sleep aid; it induces sleep but fragments the second half of the night
- Finish dinner two to three hours before bed
- Use the bed only for sleep, so the brain associates it with sleeping
- If awake for more than twenty minutes, get up and do something quiet in dim light rather than lying there
- Get bright daylight exposure in the morning, which sets the body clock
Worth knowing
Do not check the clock repeatedly at night. It converts wakefulness into anxiety about wakefulness, which is what turns a bad night into chronic insomnia.
Obstructive sleep apnoea
Loud snoring with witnessed pauses in breathing, gasping or choking during sleep, morning headaches, unrefreshing sleep and daytime sleepiness suggest obstructive sleep apnoea. It is strongly linked to obesity, and it is markedly underdiagnosed.
It matters because it raises blood pressure that then resists medication, increases the risk of arrhythmias, heart failure, stroke and diabetes, and causes dangerous daytime sleepiness. A sleep study confirms the diagnosis, and CPAP treatment transforms both symptoms and cardiovascular risk. If your partner reports that you stop breathing at night, get tested.
Insomnia
Cognitive behavioural therapy for insomnia is more effective than sleeping tablets in the long term and does not carry their risks. It involves restricting time in bed to consolidate sleep, strengthening the bed-sleep association, and addressing the anxious thoughts that maintain the problem.
Sleeping tablets have a place for short-term use during a crisis, but they cause tolerance and dependence within weeks and worsen sleep quality when used long-term. If you have been taking them nightly for months, discuss a supervised plan to reduce rather than stopping abruptly.
Shift work
- Keep a consistent sleep schedule even on days off, if the roster allows
- Use blackout curtains and an eye mask for daytime sleep
- Wear sunglasses on the journey home after a night shift to avoid resetting the body clock
- Take a short nap before a night shift rather than relying on caffeine through it
- Confine caffeine to the first half of the shift
- Eat a light meal during the night rather than a heavy one
Key takeaways
- Adults need seven to nine hours; under six raises the risk of diabetes and heart disease.
- A fixed wake time anchors the body clock more effectively than a fixed bedtime.
- Loud snoring with breathing pauses needs a sleep study — untreated apnoea drives resistant hypertension.
- Cognitive behavioural therapy beats sleeping tablets for long-term insomnia.
A note on medical advice
This article is general health education written and reviewed by the Department of General Medicine at SIMS. It is not a substitute for an examination, a diagnosis or the advice of your own treating doctor, and it cannot account for your history, medicines or reports. If a symptom is sudden or severe — chest pain, stroke symptoms, breathing difficulty, serious injury, seizures or heavy bleeding — call 9281862028 or come straight to the emergency department instead of reading further.
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