Hormones.

8 clinician-reviewed articles in this topic.

Hormones articles

LH, FSH, oestradiol, progesterone, testosterone, SHBG and prolactin - what each regulates and why they are read as a network.

The carrier protein that decides how much of your testosterone is actually available - and why a "normal" result can still mislead.

Testosterone, oestrogen and progesterone all shift with age on fairly predictable curves. What changes, and roughly when.

Known for lactation, but it also affects cycles, fertility and libido. Unusually easy to raise by accident.

Rises and falls dramatically across the cycle, so the day you test changes the result entirely.

What oestrogen regulates beyond reproduction - bone, mood, skin and cardiovascular function - and how levels shift with age.

Total counts everything; free counts what is available to tissue. Why SHBG means the two can point different ways.

Follows a daily curve, peaking in the morning. Why a single reading means little without knowing when it was taken.