Kolkata: The scorching weather and soaring humidity has forced fitness enthusiasts across the city to make significant changes to their routines to stay safe from the heat while staying active. From parks in Salt Lake and New Town to zumba and pilates centres in south Kolkata, people are tweaking their schedules, dialing down the intensity of their workouts, and focusing more on hydration and indoor alternatives.Parks like Rabindra Sarobar and Deshapriya Park have been witnessing a surge in the number of morning walkers early in the morning but clear out by 7 am. Gym owners are also advising members to stay hydrated and reduce the number of exercises."We brought forward the time to 6-6.15 am due to the hot weather. During the winter, our club meets at around 7.15-7.30 am," said Ajit Biswas, secretary of the New Town Laughing Club, which meets at Swapnabhor Seniors' Park.People have also started tweaking their morning walk schedules. Several parks in Kolkata, Salt Lake, and New Town are opening around 5.30 am, including Victoria Memorial. "I normally go jogging at 7 am, but given the hot weather, I brought forward the time to 6.15 am when the sun is not so harsh," said Ananya Ghosh, a resident of AK Block in Salt Lake.Gyms across the city reported a noticeable spike in attendance in the evenings. "At our gym, we've seen a 30% shift in timing preferences," said Priyabrata Das, manager of a popular fitness centre in Ballygunge. "Most regulars are now coming in after 7 pm."Senior citizens too are taking precautions, with many skipping outdoor routines altogether. "I am doing my stretching exercises and yoga indoors," said Aniruddha Sen (68), a retired bank employee who is a member of a senior fitness group at a community centre in Santoshpur. "I tell my clients to drink water before, during, and after workouts—even if they're not thirsty," said Rajib Banerjee, a fitness trainer in Behala. Even younger fitness enthusiasts are adapting to the weather. "Staying active is important, but surviving the heat is more important," said Aniket Mitra, who trains six days a week. "I reduced it to four with adequate rest in between."