如果你想科学有效地减脂，仅仅依靠节食是不够的，运动是必不可少的。而运动减脂，也并非简单地做一些有氧运动就万事大吉。科学研究表明，有氧运动和力量训练的结合，才是最有效的组合。

摄入充足的维生素D有助于提高免疫力

There is an exception to the general rule that supplements wont really help prevent illness, and thats vitamin D (in moderate doses). Research has shown that the immune system needs vitamin D to fight off viruses — while it wont protect you from getting the virus if youre exposed, it could reduce the severity of the illness and help make recovery easier.