If you stop taking caffeine abruptly, you may have symptoms for a day or more, especially if you consume two or more cups of coffee a day. Symptoms of withdrawal from caffeine include: 1  headache. 2  fatigue. 3  anxiety. 4  irritability. 5  depressed mood. 6  difficulty concentrating.
Klinefelter Syndrome is a chromosome abnormality that affects only boys/men. People with Klinefelter are born with at least one extra X chromosome. The male with Klinefelter will be born with 47 chromosomes in each cell, rather than the normal number of 46. Some Klinefelter patients have 48, 49, or 50 chromosomes.
That occurred in 1956, when scientists confirmed that humans typically have 23 pairs of chromosomes, including two sex chromosomes. In 1959, a young English researcher, Patricia Jacobs, identified an extra X chromosome as the genetic marker for Klinefelter syndrome, and gave it the genetic signature of 47,XXY.