I'm reading that article. Sun exposure is turning out to be as important to health as not smoking. Sunlight stimulates NO (nitric oxide) production, which is a potent vasodilator which keeps blood pressure low and peripheral perfusion high. Vitamin D allegedly even acts as natural sumscreen (need to verify this).

This is why they blocking the Sun. Also, this is why in America they have this little thing called daylight savings time.

They also block the Sun because they have almost every senior citizen in United States on vitamin D. Soybean pills.