The distance between the Moon and Earth varies from around 356,400 km (221,500 mi) to 406,700 km (252,700 mi) at perigees (closest) and apogees (farthest), respectively. On 19 March 2011, it was closer to Earth when at full phase than it has been since 1993, 14% closer than its farthest position in apogee.
You need to use a sunscreen because it protects your skin from UV damage and sunburn. Sunscreens are over-the-counter products that come in lotions, gels, ointments and sprays.The strength of the sunscreen protection is measured as SPF--or sun protection factor--which typically ranges from 15 to 45.veryone needs sunscreen to protect their skin from damaging UV rays from the sun and sunburn. Using sunscreen products decreases the chances for sunburn and can prevent skin cancer or malignant melanoma.
Optimal Skin Protection with Vitamin D. People today are aware of the importance of maintaining optimal blood levels of vitamin D for their overall health and well being. What many people do not know is that vitamin D is also indispensable to the health, beauty, and longevity of the largest organ in the body: your skin. The problem is that while the body uses sunlight to make vitamin D, sun exposure itself accelerates skin aging. Over time, ultraviolet light damages the skin, leading to wrinkles, sun spots, and higher risk of skin cancer.