1. Vacuum
Lie on your back with knees bent and arms by your sides. This exercise works best on an empty stomach. Take a deep breath, then exhale through your mouth, drawing your abs tightly toward your spine as you push out all air. Let gravity assist you. Hold for 15 seconds, then release. Gradually extend the hold to one minute if it feels right. Repeat 3 to 5 times, with each session lasting at least 2 minutes. If you have stomach or health issues, approach this with care. It raises intra-abdominal pressure, which may harm those with specific conditions. Skip this if you have heart problems, herniated discs, or asthma.
