Figure 5: The difference between male and female body surface areas, forearm surface areas, and the number of sweat glands. (a) The body surface area was significantly higher in males than in females. (b) However, the total activated sweat gland count was higher in males but not statistically significant (P > 0.05). (c) Like the body surface area, the forearm surface area was also higher in males, with statistical significance. (d) In agreement, the number of activated sweat glands on the forearm was higher in males but not statistically significant (P > 0.05). Values are mean ± standard deviation. The P values on the graph are set as ***P < 0.001.