Staying up late often will do a lot of harm to your health, including but not limited to the following:

Sleep quality declines, affecting physical function and immunity.

Discomforts such as headache, dizziness, nausea and vomiting.

Damage to the cardiovascular system will increase the risk of heart disease.

The digestive system is damaged, causing gastrointestinal problems.

The immune system is damaged and susceptible to bacteria and viruses.

Endocrine disorders lead to skin problems and reproductive system problems.

Poor mental state affects work and study efficiency.

Staying up late for a long time will also increase the risk of cancer

I suggest you try to keep good habits of work and rest and ensure enough sleep time. If you need to stay up late to work or study, you can take a proper rest and relax to avoid working or studying continuously for a long time. In addition, you can improve your immunity and resistance through diet conditioning and exercise.