Why did Meriwether Lewis suicide?

Meriwether Lewis's death in 1809 is widely believed to have been a suicide, though the exact reasons remain unclear. He struggled with mental health issues, likely exacerbated by the pressures and traumas of his expedition with William Clark, as well as his later challenges in life, including political disappointments and personal turmoil. The circumstances surrounding his death, including his isolation and despair, suggest he may have been overwhelmed by these factors. However, some historians also consider the possibility of accidental death or foul play.