Sitting in a hot tub after an exhausting exercise is one of life’s great pleasures. Pain from sore muscles and joints seems to flow away.
A review of literature by researchers from the Federal University of Rio Grande do Sul in Brazil discovered that heat therapy from a hot tub or sauna can help fight metabolic and cardiovascular disease. Heat therapy reduces glycated hemoglobin (a measure of long-term blood sugar control), fasting blood sugar and body fat. In addition, it increases nitric oxide secretion, which is an essential chemical regulating blood flow. Heat therapy increases heat shock protein 70, which suppresses inflammation, improves insulin sensitivity and prevents fat accumulation. In other words, sitting in a hot tub has measurable beneficial effects on health.