IS IT NECESSARY TO USE SUNSCREEN ALL YEAR LONG ?
Yes, you need to get used to protecting yourself everyday. Dermatologists recommend using protection all year long, because we are always exposed to UV, whatever the weather is like. Even under a cloudy sky, UV can be harmful. You should be aware that UVA is constant all year long. Thanks to sun protection, it is possible to prevent and stop skin ageing and reduce the risk of skin cancer.
Whenever you are outside: be it for work or pleasure, you should protect yourself. You should adapt your needs according to your lifestyle. Someone with light skin, that works outside for example, needs to protect themself everyday even during the winter.