You don’t have to overhaul your life. Just pay attention to a few things. Pay attention to posture—slumping forward actually makes your chest look bigger and puts pressure on your sternum. Try imagining a string pulling you up from the top of your head.
[5 Min] Exercise To Reduce Breasts Size In 3 Week For Girls - YouTube
Also, stay hydrated. I know, it sounds boring, but when you’re dehydrated, your body holds onto fat more stubbornly. And if you consume a lot of processed foods or sugary drinks, swapping one soda for a glass of water each day can make a small but noticeable difference over a few months.