How does the heat transfer takes place in human body through convection in these two situations.
1) when environment temperature is less than body core temperature($37^0C)$, say it is around $25^0C$.
2) When environment temperature is higher than body core temperature($37^0C)$, say it is around $40^0C$ 3) How does the heat transfer through convection effect with varying environment temperatures say $40^0C$ and $25^0C $when we perform some physical exercise.
So at inside of skin it finally reaches the body core temperature of $37^0C$. Can you explain me why this shape of a curve is obtained when heat is transferred only through convection.
Is it because , at the outer layer of the skin it is more cool than the environment. So when air starts moving, the hot air in environment gets less densed and than the air near the skin. So the less densed air moves near to the skin and the cool air that is near the skin replaces the warm air in the temperature and thereby increases the body temperature?
This graph is when environment temperature is $40^0C$ and we perform some exercises and this gives the distribution of temperature within the skin
How can the effect of heat transfer be explained in these two graphs.