Ms. Luu, a 55-year-old retiree, has developed a consistent afternoon nap routine since her retirement. Initially, she would only doze off for a few minutes each day. However, over time, her naps gradually lengthened, sometimes lasting until 4 or 5 pm.
A few days ago, after one of her usual naps, she woke up in the evening feeling dizzy, with a racing heart and shortness of breath. It took her a while to recover her bearings. Concerned about this episode, she decided to get a health check-up.
After describing her symptoms and undergoing a series of tests, the doctor concluded that her overall health was fine, and these symptoms were likely caused by her habit of… oversleeping during afternoon naps. The doctor advised her to shorten her nap duration to avoid disrupting her circulation and biological rhythm.

The Amazing Benefits of Napping
1. Boosts the Immune System
As we age, our immune system weakens, making us more susceptible to minor ailments like colds, fevers, and prolonged fatigue. While not life-threatening, frequent illnesses can leave us physically and mentally drained.
Taking afternoon naps is a simple yet effective way to boost our immune system. During this time, our body gets a chance to regenerate and produce important immune-boosting hormones, strengthening our body’s natural defense mechanism.

2. Helps Prevent Cardiovascular Disease
Cardiovascular disease is one of the leading causes of health concerns today. Apart from medication, maintaining a reasonable nap duration serves as a simple yet powerful “medicine.”
When we nap, our brain and cardiovascular system relax, blood pressure stabilizes, and the heart is relieved of its workload. This reduces the risk of heart attacks or cardiovascular complications in the future.
3. Enhances Memory and Focus
Aging also takes a toll on our memory and reflexes. Many older adults experience forgetfulness, which can be a nuisance in daily life. Fortunately, a short afternoon nap can help the brain process and store information more efficiently.
During rest, the brain gets an opportunity to “sort through data,” improving memory and focus. Individuals who maintain a regular napping habit tend to have sharper minds than those who don’t.
Important Considerations for Healthy Napping
1. Avoid Oversleeping
While napping offers numerous health benefits, excessive napping can be counterproductive. If you nap for too long, your body may enter a deep sleep phase. Waking up abruptly during this phase can lead to dizziness, headaches, a racing heart, difficulty concentrating, and even biological rhythm disruptions.
According to experts, the ideal nap duration is around 20-30 minutes. This is just enough to relax the brain without causing grogginess upon waking up.
2. Avoid Napping Immediately After Lunch
A common mistake many people make is lying down immediately after lunch. While this may seem harmless, it interferes with digestion and blood circulation. After a meal, the stomach requires more blood for efficient functioning. If you lie down immediately, the blood supply to the brain may decrease, resulting in a heavy head, fatigue, or even dizziness upon waking up.
It’s best to stay active for 10-15 minutes after lunch. Go for a gentle walk or stand up and move around. Once your body has partially digested the food, you can take a nap to optimize its health benefits.