When it comes to menopause, most people know about hot flashes and mood swings, but it's still a pretty mysterious stage for a lot of women, even though we all will go through it. Thankfully, the conversation around perimenopause and menopause is changing. Women are becoming more outspoken about this stage of life, including experts like Ritual CEO Katerina Schneider and Parsley Health CEO Dr. Robin Berzin , who chat about the topic on the latest episode of the "Nice Talk" podcast .

While the length of perimenopause—the time leading up to menopause, which is defined as 12 months without a period—differs from woman to woman, Dr. Berzin suggests viewing this time of life as an "era, not a condition."

"For the Era's Tour of our lives, this is the perimenopause menopause era," she says. "For most women, it starts around 40, and the vast, vast majority of women will be in perimenopause by 45 to 47. Everyone's timeline is a little bit different. Some women go into perimenopause as early as their late 30s."

Dr.…