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Sathi

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Periods, perimenopause, and what your own tracking can actually tell you.

cycle basics

Why cycle predictions are estimates, and what makes them better

No app can know when your next period will start. Here is what the number is actually based on.

2 min read

symptoms

Heavy periods: what actually counts as heavy

There is a clinical definition, and there are practical signs that are easier to judge.

1 min read

cycle basics

What a fertile window is — and why it is not contraception

Apps estimate it from your average cycle. That estimate is not reliable enough to prevent pregnancy.

1 min read

symptoms

Sleep and your cycle: what the pattern usually looks like

Sleep commonly worsens in the days before a period and through perimenopause. Tracking shows you your own version.

2 min read

symptoms

Period pain: what is common and what is not

Cramping is expected. Pain that stops you living your life is not, whatever you have been told.

1 min read

perimenopause

Why your cycle length changes in perimenopause

Shorter, then longer, then skipped. The sequence is common, and it is usually the first sign.

1 min read

privacy

What your period tracker knows about you

Cycle apps hold some of the most sensitive data you generate. Here is what to check before trusting one.

2 min read

getting help

How to prepare for a GP appointment about your cycle

Ten minutes goes quickly. Here is what to bring so none of it is spent reconstructing dates.

1 min read

perimenopause

Tracking hot flashes: what to record and why

Frequency, timing and what preceded them turn a vague complaint into something treatable.

1 min read

perimenopause

Perimenopause symptoms: what the transition actually looks like

It usually starts in the forties and can last years. The signs go well beyond hot flashes.

2 min read

cycle basics

Irregular periods: what actually counts as irregular

A few days either way is normal variation. Here is where the line usually sits, and what is worth raising.

1 min read

cycle basics

How long is a normal menstrual cycle?

Anywhere from 21 to 35 days counts as typical, and your own average matters more than the number 28.

2 min read