Jane Fonda announces she's been diagnosed with non-Hodgkin's Lymphoma

Jane Fonda was diagnosed with non-Hodgkin's lymphoma and started chemotherapy

actress and activist said in a post shared on her verified social media accounts.

"This is a highly treatable cancer.

Non-Hodgkin's lymphoma is a cancer of the immune system.

Fonda said her chemotherapy, which she plans to continue for six months

she is "well managing the treatment," she said, adding, "Trust me

After being inspired by young environmental activist Greta Thunberg