Your skin is like your body's air conditioner. When it is hot, you "open" your vents (dilate blood vessels). When it's cold, you close it up (constrict, which gives your skin a "bluish" appearance). If you are golfing, you are using a lot of energy in your legs creating a lot of heat. Therefore, your body will open up those "vents" the most.
Heat or warmth and movement like lite excercise
Veins come up everywhere in your body. They are normally more visible when the vein has dilated. When your veins dilate your Blood pressure drops and heat loss increases.
heat
They dilate at the surface of the skin to release heat into the atmosphere, and they can also constrict to reduce heat loss through the skin.
Thermotherapy
Thermotherapy
Thermotherapy
Thermotherapy
Thermotherapy
The muscle and veins in it make it look weird.
thermotherapyThermotherapy for A+
Heat loss goes up as blood pressure drops