Atomically, no. Mercury's atomic weight is 200.59 whereas Lead's atomic weight is 207.2. So basically, if you had the exact same amount of Lead and Mercury, lead is heavier.
The sex hormone binding globulin (SHBG) test may be used to help evaluate men for low testosterone and women for excess testosterone production. It may be ordered in conjunction with other tests to evaluate the status of a person's sex hormones.SHBG is a protein that binds tightly to the hormones testosterone, dihydrotestosterone (DHT), and estradiol (an estrogen). In this bound state, SHBG transports these hormones in the blood as biologically inactive forms.HBG is ordered primarily when the total testosterone results do not seem to be consistent with clinical signs and symptoms, such as infertility, decreased sex drive, and erectile dysfunction in men or infertility, irregular menstrual periods, and excess facial and body hair in women.
1 Your doctor may do a physical exam and ask questions about your health. 2  In some cases, depression may be linked to an underlying physical health problem. 3  Lab tests. 4  For example, your doctor may do a blood test called a complete blood count or test your thyroid to make sure it's functioning properly. In some cases, depression may be linked to an underlying physical health problem. 2  Lab tests. 3  For example, your doctor may do a blood test called a complete blood count or test your thyroid to make sure it's functioning properly. 4  Psychological evaluation.