Donald Trump told The Wall Street Journal in an interview published Thursday that he takes a higher dose of aspirin than his doctors have recommended, blaming that for the visible hand bruises that have generated renewed questions about his health.

The interview appeared to be one of the most extensive conservations Trump has had with journalists on his health, as scrutiny has intensified this year over his age, fitness for office and whether he’s being sufficiently transparent with his medical information.

Trump has long had bruising on his right hand, which CNN has reported predated his return to the White House. But it drew more attention after he began trying to cover it with heavy makeup and bandages and shield it from cameras with his other hand. Observers have also raised concerns about swelling in his legs and his appearing to doze during public events.