By Geoffrey Hogan (M.Ost) Farringdon Osteopaths With the seasons changing, our likelihood of getting seasonal respiratory illnesses increases. This coincides with more time spent indoors and a decrease in vitamin D levels due to lack of sunlight exposure. There are ways that we can improve our resilience during the darker seasons. An important thing that we can do is to supplement the vitamin D that we are not getting from sunlight exposure. According to the World Health Organization this should be 600 international units (IU) per day. In addition to this we can help our respiratory system to function better ….continue to the whole article