How bad is it for your health not to sleep well?

Poor sleep or not enough sleep may seem common, but its effects on health are much more serious than many imagine. According to various medical studies reported by the Mayo Clinic, Poor rest directly affects the immune system and weakens the body's natural defenses, increasing the risk of getting sick more frequently.

When a person sleeps little, the production of cytokines—proteins essential for fighting infection and inflammation—decreases, as do the levels of antibodies that help protect the body. This makes the body more vulnerable to viruses, bacteria, and common respiratory illnesses, and also makes it take longer to recover from an existing infection.

Sleeping well strengthens health

Sleep plays a vital role: during rest hours, the body recovers, repairs tissues, and strengthens its defense system. However, consistently poor sleep can have more serious long-term consequences. Lack of sleep is associated with increased risk of obesity, type 2 diabetes, depression, hypertension, heart attacks, and heart disease.

Sleeping well not only provides energy and concentration, but also helps maintain overall balance in the body and prevent chronic conditions.

How many hours of sleep should you get according to your age?

The amount of rest needed varies by life stage, says the Mayo Clinic. Specialists recommend:

Babies (4-12 months): between 12 and 16 hours daily
Toddlers (1-2 years): 11 a.m. to 2 p.m.
Preschoolers (3-5 years): between 10 and 13 hours
Children (6-12 years): 9 a.m. to 12 p.m.
Teenagers (13-18 years): 8 to 10 hours
Adults: between 7 and 9 hours per night

Sleeping more than 9 or 10 hours can also be a sign of poor quality rest or an undiagnosed health problem.

Rest isn't a luxury; it's a biological necessity. Adequate sleep keeps your body strong, your mind focused, and your immune system ready to protect you every day.