AI Insight
A study has found that women's core body temperature increases gradually and steadily between the ages of 18 and 42, representing a measurable physiological change across early to middle adulthood. This trend was identified independent of menstrual cycle phase, suggesting it reflects a broader age-related shift in thermoregulation rather than hormonal fluctuations alone. The mechanism driving this pattern remains unclear and warrants further investigation.
Why it matters
If confirmed and better understood, this temperature trend could serve as a non-invasive biomarker for tracking female ageing and detecting early signs of metabolic or physiological health changes. It may also prompt a reassessment of what constitutes a normal body temperature range for women across different life stages.
Understand the Science
Women experience a steady rise in body temperature from their teens to midlife, which may be useful for monitoring ageing and overall health
Source: Women’s body temperature rises from age 18 to 42 but we don’t know why