The ISS has supported a crewed presence in space for twenty years now and while parts have been added over time, key original components are 20+ years old.
Crewed presence is usually limited to a half-year at a time, though there have been a few stays of about a year. Despite an aggressive exercise regiment and other countermeasures, astronauts experience health problems like bone loss and vision issues due to extended exposure to microgravity.
I was wondering; are there any active proposals for a future crewed space station (probably commercial) to use artificial gravity?