New Delhi, March 24 -- Ever since Sunita Williams' return to Earth on March 18, after a nine-month-stay at the International Space Station (ISS), the NASA astronaut has been caught on camera multiple times. Health experts had already pointed out that it would not be an easy task for Williams and other astronauts to adjust to Earth.

Now, videos are going viral on social media showing Sunita Williams with an apparent deformed and extended chin.

Doctors weighed in, stating that astronauts experience loss of bone density due to the absence of a gravitational force.

Health experts noted that the NASA astronauts experienced several noticeable physical changes, including a shrunken and deformed jawline.

"I don't think people realize that you...