Articles
Hormones 10 min
A low free T4 should raise TSH, so a normal TSH beside it points either to a free T4 pulled down by illness, medicines, pregnancy or the assay, or to central hypothyroidism, where the pituitary or hypothalamus does not drive the thyroid. The ETA confirms it only on repeat testing after the look-alikes are excluded.
Hormones 11 min
The American Thyroid Association names no TSH level that is an emergency by itself. It treats a TSH persistently below 0.1 mU/L as the more serious tier, where heart and fracture risks are highest; free T4, T3 and symptoms decide urgency.
Hormones 10 min
The AACE and ATA thyroid guidelines set no TSH level that is an emergency by itself. They draw one line, 10 mIU/L, above which heart failure and cardiovascular risk rise and treatment should be considered; a low free T4 and the person's condition decide urgency.
Sponsored
4.0/5 our scoreAffiliate link, we may earn a commission at no extra cost to you.
Hormones 10 min
The best longitudinal data says the menopause transition does not accelerate weight gain. Weight climbs through the forties on an unchanged slope and keeps climbing at the same rate through the transition. What changes is composition: fat gain roughly doubles while lean mass starts falling, and visceral fat begins rising at over 6 percent a year.
Hormones 8 min
A raised TSH with a normal free T4 is called subclinical hypothyroidism, and the largest randomized trial in older adults found levothyroxine produced no improvement in hypothyroid symptoms or tiredness at one year. The AACE and ATA position is that treatment below a TSH of 10 should be tailored to the individual, not automatic.
Hormones 3 min
The AUA guideline sets total testosterone below 300 ng/dL as the cutoff supporting a low-T diagnosis, requires two early-morning measurements on separate days, and only diagnoses testosterone deficiency when the low number comes with symptoms or signs. Fatigue, low libido, erectile changes and reduced muscle are the common complaints. Therapy needs monitoring, and fertility is a real tradeoff: testosterone therapy suppresses sperm production.
We are not sending the newsletter yet. Leave your address and you will get the first one when we turn sending on, and nothing before it. Every number sourced and dated. Free, no spam.
We'll never share your email. We never sell your data.
