Is lactic acid harmful to the human body?
Under normal circumstances, lactic acid is not harmful to the human body. However, if lactic acid accumulates in large amounts, it may lead to acidosis, which can be harmful. A detailed analysis is as follows:
1. Not harmful
If a person does not engage in intense physical activity or only performs mild exercises such as walking, lactic acid typically will not be produced. In the absence of lactic acid production, no harm occurs to the body. Appropriate physical exercise can also accelerate metabolism and help reduce body fat.
2. Harmful
Excessive accumulation of lactic acid may cause strong muscle contractions, significantly increasing pressure on blood vessels, leading to poor local circulation or insufficient blood supply. This can disrupt the body's acid-base balance and, in severe cases, trigger acidosis. Clinically, this may manifest as dizziness, headaches, cold extremities, and a sensation of heaviness in the head.
Lactic acid buildup usually occurs after intense physical activity or strenuous labor. However, due to differences in individual physical conditions, the effects on the body may vary. If obvious discomfort symptoms occur, medical attention at a local hospital should be sought immediately.