VistaJet, a private jet charter firm used by F1 drivers and popstars, launched a wellness program. See how the elite fly on its $75 million Global 7500.

I've flown business class three times — and on a private jet twice. Here's which is better.

Because the business jet industry emphasizes privacy, the airport's security stopped us from taking photos of most of the aircraft. The one in the foreground is a Bombardier Challenger 350 owned by VistaJet.

With 15 such aircraft, VistaJet has the largest fleet of Global 7500s. Their top speed isn't far off the speed of sound — Mach 0.925 or about 110 mph faster than a Boeing 787 Dreamliner.

Dr. Jordan Shlain from Private Medical recounted how a couple of clients had chest pains in the rural Bhutanese mountains. They had to be flown out for tests, so his firm gave the local doctors an electrocardiogram machine so it's easier to deal with such situations in the future.

"After they buy a plane, they try for two years and they come to us because managing your own plane is very complex," Atti said. "And having an entire fleet of over 300 aircraft available is sometimes a much better option."

VistaJet customers can either pay for a one-off trip, or become members taking advantage of its fixed prices.

The cabin hosts are trained at exclusive schools like the British Butler Institute and Norland College for nannies, Atti said.

So the staff learn "how to read the movements or the actions of people to understand what their requirements are."

As well as the "Performance Athlete Menu" created in collaboration with Charles Leclerc, there are also ones labeled Relax, Rejuvenate, and Revitalize.

VistaJet customers can access post-flight wellness guides put together by Shlain, for tips on hydration and managing jet lag.

Although he also spoke about the need for a deeper dive because, "everyone's biology and physiology are fundamentally unique to them."

One thing you can't get on commercial planes is the Global 7500's lower cabin pressure, equivalent to breathing at 4,000 feet.

Even the newest airliners like Boeing's 787 Dreamliner and the Airbus A350 are pressurized to around 6,000 feet.

I went onboard an Emirates A380 for the first time and was blown away by the first-class luxuries – and how you can shower in mid-air