The nature of blood is liquid, not clumpy, not gel-like, not clot-like. However during an injury to the skin that affects blood vessels, blood clots form and they act as clogs to help reduce blood loss from the injury. However blood clots traveling in the blood through blood vessels poses a serious hazard and threat to life. Depending on where the blood is found or where it gets stuck, it poses different types of threat. They can get stuck in the blood vessels of organs (heart lungs, brain), in limbs (arm or leg), in the tummy. Certain lifestyles can put one at risk of developing blood clots, other factors that are not within our control can also put us at risk. Here are some risk factors of developing blood clotsπ - sedentary lifestyle, sitting for too long (especially during long trips). Being on bed rest for too long - smoking - birth control pills (some) - pregnancy - some types of illnesses (autoimmune disorders, some cancers, HIV/AIDS...) - obesity - age (...