You get a tan by exposing yourself to harmful ultraviolet (UV) radiation. This is the case, whether you're tanning in the sun, or in a tanning bed. Exposure to UV radiation can lead to prematurely aged skin (wrinkles, brown spots, etc.) Worse still, you can get skin cancer.
Your risk of melanoma more than doubles if you began using tanning beds before the age of 35. The World Health Organization (WHO) recommends banning the use of tanning beds by children under the age of 18.
Some people mistakenly think that you need to use a tanning bed to develop a "base tan" to protect them from UV rays from the sun, but actually the opposite is true. You're really just adding even more radiation to your skin.
Globally in 2000, over 200,000 cases of melanoma were diagnosed and there were 65 000 melanoma-associated deaths. UV rays can also cause cataracts and eventual blindness.
The WHO recommends that you use sunscreen and sunglasses with UV protection when out in the sun, and to stay in the shade as much as you can. Babies should always be left in the shade because they are more at risk.