Dr. Oz and Dr. Andrew Weil share an essential guide for regaining your energy and strengthening your immune system naturally through diet, stress reduction, and daily habits.

Dr Thuva Amuthalingam, a GP, says people should “sit by a window or go for a 10-minute walk outdoors during daylight hours”.

Recent studies have shown that even if you feel healthy and fit, your immune system could be aging quicker than you think, which could increase the risk of infections and immune-related disorders.

What felt like only weeks ago, the UK was basking in the late-summer sunshine. Now, skies are grey and daylight fades by 4pm - and everyone seems to know someone struck down by an awful cold. Cold and ...