Stem cells are cells that have the capacity to self-renew by dividing and to develop into more mature, specialised cells. Stem cells can be unipotent, multipotent, pluripotent or totipotent, depending ...

More than any other piece of gear, ski boots are something that needs to fit you. Choose your boots based on what fits when you try it on, not on what some random gear editor says they wear on the ...