The rapper described Pinkett Smith as the "omega of my heart" in the poem. The poem is included in Shakur's 1999 poetry collection, "The Rose That Grew from Concrete." Tupac Shakur, the rapper ...

Lab-grown human heart cells provide a powerful tool to understand and potentially treat heart disease. However, the methods to produce human heart cells from pluripotent stem cells are not optimal.

It’s like a real heart reacting to stimulus from the brain: pumping and pumping. It’s just a lot smaller than a real human heart–about ... not just a generic form of heart tissue.