This is also a good opportunity to discuss important travel health issues including safe food and water, accidents, sun exposure and insect bites. Many of the problems experienced by travellers cannot be prevented by vaccinations and other preventive measures need to be taken.
Age and genetics. As you get older, the veins in your hands may become more visible. Additionally, some peopleâs veins are naturally more visible. This could be due to skin pigmentation, body fat distribution, or a variety of other genetic factors. In most cases visible veins in hands are not a sign of a medical condition, or of any other problems.
1 It is common for men over 65 yet can occur at any age. 2  The blood flowâ¦. 3  Veins and Their Function in the Circulatory System Veins are an ever-present part of human anatomy. 4  A simple glance at one's hand reveals the presence and function of veins in the body.