Kathmandu. During the summer season, intense sunlight, sweat, dust, and pollution significantly affect the scalp and hair. In this weather, hair can become sticky, while for others, it may turn dry and lifeless. Seeing such hair, one naturally feels the urge to wash it. However, there is often a debate about whether one should wash their hair every day.Our scalp naturally produces an oil called 'sebum.' This oil protects the hair from drying out and provides a natural shine. However, in summer, excessive sweat mixes with dust and dirt, causing it to stick to the scalp. If not washed for...