Before revision: Low cholesterol levels, slow heart rate, DHEA, MHPG, blood glucose, cortisol, testosterone, physical attractiveness, and blood lead levels, and the ratio of tryptophan to other amino acids in the blood, have all also been connected to criminal behavior .
After revision: Low cholesterol levels, slow heart rate, DHEA, MHPG, blood glucose, cortisol, testosterone, and blood lead levels, and the ratio of tryptophan to other amino acids in the blood, have all also been connected to criminal behavior .