In winter, risks to physical and mental health increase due to factors like decreased sunlight, colder weather, and holiday stress. To combat seasonal affective disorder, experts recommend increasing exposure to sunlight, brightening the home, and creating a cheerful playlist. Nutritional intake should focus on vitamins C, D, and B-complex due to changes in appetite, cravings, and sunlight-related hormonal imbalances. Regular exercise can also help in managing stress.