As the first female vice president of the United States, Kamala Harris understands the challenges many women face when it comes to sexism, ageism and navigating the demands of home life and work life.

In a recent interview on MSNBC's "Morning Joe," Harris spoke with co-host Mika Brzezinski about why she's "never thought of age" as it relates to her career and the advice she would give women in their 20s and 30s who "feel like they have to pack it all in" because "there's a clock ticking."