The billionaire CEO of Tesla uses Twitter, where he has nearly 101 million followers, to extend his influence beyond business circles.

His name is certainly associated with premium electric vehicles maker Tesla and space exploration and rocket company SpaceX, but the world's richest man sees himself as a multi-faceted personality.

"Psychedelics and MDMA can make a real difference in mental health, especially for extreme depression and PTSD. We must take this seriously," Musk wrote on June 10.

In April, the billionaire also surprised his millions of fans by urging him to stay away from amphetamines like Adderall. He said they were dangerous.

But the richest man in the world has more than 101 million followers on Twitter and most of them are fans. They worship him and are likely to listen to his advice and recommendations.

Elon Musk has once again taken on the role of a health professional as he now offers advice on how to deal with sleep disorders.

"For better quality of sleep, raise the head of your bed about 3" or 5 cm and don't eat 3 hours before bedtime," the entrepreneur told his millions of followers on July 11.

In response, Jimmy Donaldson, the YouTube star known as MisterBeast, asked for further explanation: "Anyone wanna explain why these two things help me?"

"There's a good chance you're experiencing at least mild acid reflux at night, without conscious awareness affecting quality sleep," Musk responded.