(NewsNation) — Actress Jane Fonda, 84, announced on Instagram Friday she has non-Hodgkin’s lymphoma and has begun chemotherapy.

“This is a very treatable cancer,” Fonda wrote. “80% of people survive, so I feel very lucky.”

She will undergo chemo for six months, according to her post. She said she is handling treatment “quite well.”

Fonda went on to say she is very privileged to have access to health insurance and reminded people at the end of her post that midterm elections are coming in November.