These stimulants tend to increase alertness without the peripheral (body) effects or addiction/tolerance/abuse potential of traditional stimulants (such as amphetamine), as they lack direct dopaminergic action. Their effect on sleep structure is not fully established and may reduce quality of sleep.
Trans fats, or trans-unsaturated fatty acids, trans fatty acids, are a type of unsaturated fats that are uncommon in nature but became commonly produced industrially from vegetable fats for use in margarine, snack food, packaged baked goods and frying fast food starting in the 1950s.nly unsaturated fats can be trans or cis fat, since only a double bond can be locked to these orientations. Saturated fatty acids are never called trans fats because they have no double bonds. Therefore, all their bonds are freely rotatable.
Compare the differences between saturated, trans, unsaturated, monounsaturated, and polyunsaturated fats and know food sources of each. A saturated fatty acid has each carbon within the fatty acid chain completely fi lled with hydrogen atoms. An unsaturated fatty acid has two neighboring carbons within the chain that are missing two hydrogen atoms. Monounsaturated fatty acids have one dou-ble bond within the carbon chain; polyunsaturated fatty acids have two or more double bonds within the carbon chain. Trans fats are unsaturated fatty acids that have at least one trans double bond. The trans shape enables the hydrocarbon chain to be relatively straight.