Healthline states that sitting for over 6-8 hours daily, such as during work, driving, or computer use, is considered prolonged sitting and detrimental to health. Extended physical inactivity raises the risk of obesity, high blood pressure, high blood sugar, and cholesterol disorders.

Anxiety and depression

Individuals who sit for more than 8 hours a day for two consecutive weeks face a higher risk of anxiety and depression symptoms. Prolonged sitting reduces muscle activity, which can impair blood circulation and decrease the supply of blood and oxygen to the brain. According to Healthline, the brain requires sufficient blood flow and oxygen to function optimally. When energy is inadequate, the brain's nervous system is affected, increasing the likelihood of anxiety and depression.

Sitting for over 8 hours a day negatively affects the brain. *Photo: AI*

Cognitive decline

Excessive sitting can impair brain health, elevating the risk of memory decline. Insufficient oxygen supply to the brain and poor glucose utilization deprive the brain of essential nutrients for reasoning and focus. Over time, this leads to cognitive decline, poor memory, and slower information processing. People who regularly sit for more than 8 hours daily face an increased risk of developing Alzheimer's disease and dementia in older age.

Stroke risk

Physical activity boosts the action of the enzyme lipoprotein lipase (LPL), which breaks down triglycerides in the blood for the body to use or store fat. When sitting for long periods with minimal movement, LPL activity decreases, potentially affecting fat metabolism and contributing to increased fat accumulation. Over time, this is associated with higher BMI, waist circumference, and visceral fat, consequently raising the risk of diabetes and cardiovascular disease – key risk factors for stroke, according to Very Well Health.

To mitigate the adverse effects of prolonged sitting on brain health, adults should limit continuous sitting. They should stand up and move around every 30-60 minutes of work. This could involve walking for about five minutes, stretching, or performing a few squats in place.

Office workers can increase their daily activity by standing during phone calls, holding standing meetings, walking to get water, or opting for stairs instead of elevators. Additionally, it is important to maintain regular exercise most days of the week, or at least three days each week.

By Anh Chi (Compiled)