KUALA LUMPUR, July 31 — Tun Dr. Mahathir Mohamad has been discharged from the National Heart Institute (IJN) and is now on “home leave,” according to an aide. Dr. Mahathir, 99, was admitted earlier this month due to coughing, but his condition has improved enough to return home. This marks another instance of the former prime minister’s extended stays at IJN, where he has previously spent over a month earlier this year for undisclosed health issues. Dr. Mahathir has a long history of heart disease and has undergone several medical procedures to manage his condition. His frequent visits to IJN underscore his ongoing need for specialized heart care.