Your thyroid sets your metabolic rate, the body's thermostat. When it runs low, everything slows: energy, mood, weight, temperature, even hair. It is a frequent, overlooked reason a man feels sluggish despite normal testosterone.
- A full thyroid picture is more than TSH alone; free T3 and T4 add context.
- Low-thyroid signs: fatigue, cold hands, dry skin, weight gain, low mood.
- It is very treatable once identified, which is why we test it.
- Symptoms with a normal TSH still deserve a closer look.