Travel can increase longevity by helping people establish and maintain a healthy lifestyle, says Dr. David Lipschitz, director of the Center on Aging at the University of Arkansas for Medical Sciences, and an author and syndicated columnist on aging.
Travel for Long Life
According to Lipschitz, the two most important factors for longevity are health and happiness, and travel helps to foster both. Planning a trip helps seniors in these ways:

Travel keeps their minds sharp.
Increased opportunities for walking and other exercise help older adults stay fit.
Making new friends will increase longevity.
Connection Increases Longevity
Traveling with a spouse or significant other is a great way for couples to reconnect through shared experiences, rekindle romance and increase intimacy. Researchers have found that having an intimate relationship as we grow older is a critical factor for health and longevity. Married men live an average of 10 years longer than those who aren’t married, and married women live approximately three years longer.