Can flying mess with your period?
Can flying mess with your period? Disturbing your circadian rhythm may cause a delay in the oestrogen spike that leads to ovulation, so you'll have a later period than normal that month. Not only can jet lag affect your period but it might cause all kinds of other changes in your body – irritability, exhaustion, stomach upset and a lack of appetite.
Does flight altitude affect blood clots?
It has been well recognized that a hypercoagulable state exists when a person is exposed to high altitude environment. This may manifest as early thromboembolic episodes, which may result in deep vein thrombosis (DVT) or acute pulmonary embolism (PE), which is a potentially fatal condition.