Recent studies have shown that consuming more than 300 milligrams of caffeine a day will increase ones chances of a miscarriage, and based on studies on animals, high levels of caffeine may also cause birth defects, preterm delivery, reduced fertility and low birth weight.
Fragile X syndrome is the most common inherited cause of intellectual disability and one of the most common genetic disorders associated with autism. The signs and symptoms of fragile X syndrome can vary between individuals, and symptoms in males are usually more significant than in females. The syndrome occurs in approximately 1 in 3,600 males and 1 in 4,000-6,000 females.
Triple-X Syndrome (Trisomy X) A rare chromosomal genetic syndrome with one or more extra X chromosomes, leading to XXX (or more rarely XXXX or XXXXX), instead of the usual XX. These people are females and can be unaffected, or may suffer from problems such as infertility and reduced mental acuity.