Apply a good sunsreen lotion with atleast SPF 15 before swimming. Wash your hair frequently with a mild herbal shampoo to prevent hairfall. De stress regularly as stress increases hair fall. Have a well-balanced diet with adequate amounts of good quality proteins from milk/curd, cheese, and if non-vegetarian , you can have mutton, eggs, fish and chicken as a part of your regular diet. Include plenty of fresh fruits as they are good sources of Vitamin C and vegetables as salads so that you get the needed vitamins and minerals in your diet which are required for a healthy skin and hair. Stay active and avoid sun exposure whenever possible. Keep your hair covered in the scorching heat of summers. Stay well-hydrated by drinking plenty of fluids like fruit juices, coconut water, lemon water, buttermilk besides plain water. Avoid eating junk foods and limit consumption of soft drinks/carbonated beverages as they provide only empty calories without any nutrients.