Two systems are said to be in chemical equilibrium with each other when their chemical potentials are same. 3) Thermal equilibrium: When the system is in mechanical and chemical equilibrium and there is no spontaneous change in any of its properties, the system is said to be in thermal equilibrium.
While scientists have known for some time that genetics play a role in alcoholism and other addictions, they also understand the tendency to be dependent on alcohol is more complicated than the simple presence or absence of any one gene.
But research suggests that the APOe4 gene confers its Alzheimerâs risk unevenly in women. A recent study led by Michael Greicius, medical director of Stanford Medical Schoolâs Center for Memory Disorders, found that women with the APOe4 gene were twice as likely to get Alzheimerâs as women who did not carry the gene.