The hydrogen is clearly the lowest priority substituent, but the other three groups are all attached to the stereogenic carbon by bonds to carbon atoms (colored blue here). Two of the immediate substituent species are methylene groups (CH2), and the third is a doubly-bonded carbon.
Green tea contains EGCG (catechin/epigallocatechin gallate), which stimulates white cell blood production. You can add the tea to your regular diet or, better yet, replace a cup of green tea for a cup of coffee or a soda. Step 5. Try acupuncture.
Long hailed as a libido-boosting food, these little morsels are high in zinc. You may naturally experience a boost in your testosterone, your libido and your sperm count as a result. Other foods packed with zinc include sardines, anchovies, cashews and wild-caught salmon. Raw pumpkin seeds are another good source but should be limited to one tablespoon a day.