Question

Can human body act as a magnet ...if yes then can gravitational force be changed with the term of magnetic attractions acting on our body ..

Answer 1

The given answer is a mere possibility.

Human body can act as a magnet. Providing proper magnetic field is enough to magnetize human body.

Yes, gravitational force be changed with the term of magnetic attractions acting on our body. For example
Most magnets already have stronger attraction force to close iron objects than gravity. This is shown by their ability to hold these objects in the face of gravity. If magnets' magnetic forces were merely as strong as gravity's power of attraction, these would be easily dislodged, and fall to the ground.

Hence, gravitational force can be changed with the term of magnetic attractions acting on our body.