Getting older doesn't necessarily cause age spots. Too much exposure to the ultraviolet rays of the sun is more likely to cause these unattractive blotches, than maturity. This is why age spots are also called sun spots. Other factors that make you more susceptible to age spots (no matter what your age is) are smoking, a diet high in refined sugars and fats, a lack of vitamins, and over consumption of poor quality saturated oils.