The Flow

Built for Black women
Why we built Happy Flow for Black women specifically
Most hormonal health research was done on white women. We're done pretending that's fine. Read more...
Tracking your cycle
Tracking your cycle without an app
Cycle apps want your data. A notebook costs two pounds and tells you the same thing without selling it. Read more...
Foods for your luteal phase
Foods that help your luteal phase (without the fad)
The two weeks before your period are not the time to be heroic with your diet. They are the time to eat strategically. Read more...
How long supplements take
How long it really takes for hormone supplements to work
Two weeks isn't long enough to judge a hormone supplement. Three months is. Here's why. Read more...
PMS vs PMDD
PMS vs PMDD: what the difference actually feels like
PMS is irritating. PMDD takes you out. Knowing which one you have changes how you treat it. Read more...
Your period pain isn't normal
Your period pain isn't normal. Here's what is.
Cramps so bad you can't get out of bed are not just bad luck. Here's what painful periods are actually telling you about your hormones. Read more...