Hi,
As per your information, your father is suffering from excessive daytime sleepiness which is often seen in obstructive sleep apnea syndrome.
This is commonly seen in obese individuals ( over weight patients).
Other risk factors are consumption of alcohol and cigarettes
Next Steps
1. avoid consumption of alcohol and cigarettes
2. Weight reduction strategies: reduced calories intake, aerobic exercises or walking
3. if he is snoring a lot, let him sleep on bed with slight headup position
4. few patients may require lung function tests and sleep study
5. depending on severity few may require CPAP device to avoid snoring
6. in severe cases, surgery is also indicated
Health Tips
1. weight loss
2. regular aerobic exercise
3.sleep in headup position