Sebastian Vettel feels that Formula 1 must be wary of neglecting team members after a record-breaking calendar was announced for the 2022 F1 season.
There will be 23 events next year, including a visit to four different continents in the opening five rounds.
"We can already see now that it's an immense task," Vettel told RacingNews365.com and other select members of the press.
"We mustn't neglect that we are a group of people and human beings travelling around the world.
"You can [count] the numbers. If we have 52 weekends in a year, we do 23 of those as races, and [there are] a couple of months in a year that we can't hold races in most places around the world. It obviously gives you a very intense season.
"The objective should be [that] we have a sustainable way to run our season, not only for our environment but also looking at the human resource.
"If you have so many people involved, the weekends are far longer than the Saturday-Sunday that we see on the TV, for most of the team. I think drivers, we are on the lucky end."
AlphaTauri team boss Franz Tost raised some eyebrows over the Turkish Grand Prix weekend when he suggested that anyone who isn't in F1 to race as often as possible should leave the sport.
Vettel says F1 "must be very careful" with its calendar, hinting that a long schedule could hurt people within the sport.
"It should be held in a way that those people also can have a normal life apart from their jobs spent away from home," said Vettel.
"Most of them, whether it's engineers or mechanics, staff working in the team, they have a family or children that they want to look after.
"So we must be very careful where we want to put our interests."
Video: The 10 most bizarre F1 cars of all time
RacingNews365.com looks back at some of the strangest and most unique Formula 1 car designs from over the decades.