This is also known as fibrocystic breast change and is extremely common. It is caused by the changes in the breast each month and the regression of those changes when we don't conceive. It occurs in 90% of women by age 40 and does not increase the risk of breast cancer. Caffeine can make the symptoms (tenderness and lumpiness) worse. Hope this answers your question.
Nuclear energy is a controversial topic. Proponents call it the most viable, currently available resource for meeting the worldâs growing energy needs, while protagonists say that the by-product of nuclear energyânuclear wasteâhas created one of the greatest problems of the 20th century.
That is a little different but not so much that it matters in daily conversation. Nuclear energy is a type of energy, just like chemical energy and solar energy and kinetic energy. You can say you have a certain quantity of nuclear energy just as you can say that a liter of gasoline is a certain quantity of chemical energy. Power is the rate it is used or produced, so it is like discussing the rate that a car uses gasoline.