Fibromyalgia is far more common in women than in men. Some interesting studies show that women have approximately seven times less serotonin in the brain. That may explain why fibromyalgia syndrome, or FMS, is more common in women. Another theory states that fibromyalgia is caused by biochemical changes in the body and may be related to hormonal changes or menopause.
Not that the XF was bad, in fact it was very good, but just starting to show its age. The new Jaguar XF shares the same familial face as the XE and, while handsome, isnât much different from before. But the latter isnât really relevant as the XF is a fantastic look machine, as is the rest of the Jaguar lineup.he new Jaguar XF shares the same familial face as the XE and, while handsome, isnât much different from before. But the latter isnât really relevant as the XF is a fantastic look machine, as is the rest of the Jaguar lineup.
2015 BMW 5 Series. by Doug DeMuro August 2015. If you're interested in buying a new luxury sedan, your shopping list might include the 2015 BMW 5 Series and the 2015 Jaguar XF. Both are midsize models, falling below their brands' flagship 7 Series and XJ sedans but above the entry-level BMW 3 Series and Jaguar XE.egardless of whether you choose the Jaguar or the BMW, you'll get 4 years or 50,000 miles of bumper-to-bumper coverage. Still, there aren't enough differences between the 5 Series and the XF for us to award this category to either model.