Page 57 - BBC - The Scientific Guide to a Healthier You
P. 57

EXERCISE




                                                                                 Stay sharp




                                                                                 Exercise keeps us mentally fit too


                                                                                 Aerobic exercise, or a              Medicine and another presented
                                                                                 combination of aerobic and          at the 2015 Alzheimer’s

                                                                                 muscle-strengthening activities,    Association International
                                                                                 three to five times a week for      Conference found that both
                                                                                 30 to 60 minutes can help           regular aerobic exercise and
                                                                                 maintain learning and keep          some forms of resistance
                                                                                 judgement skills sharp.             training improved
                                                                                   Meanwhile, natural brain          hippocampus-related
                                                                                 reactions to exercise have been     memory and slowed down
                                                                                 shown to protect us from            cognitive decline.
                                                                                 forgetfulness and improve              A study from the University of
                                                                                 problem solving.                    Montreal noted that those of us
                                                                                   Recent research even suggests     who use the weight room to
                                                                                 that exercise throughout one’s      build muscle may be giving the
                                                                                 lifetime can play a major role in   brain a lift, too. The study
                                                                                 battling the onset of age-related   suggests that the raised levels
                                                                                 ailments, such as dementia.         of growth factor 1 (IGF-1)
                                                                                 Several studies, including one      caused by resistance training
                                                                                 from Japan published in the         helps in neurone (brain cell)
                                                                                 International Journal of Sports     growth and longevity.




             Natural exercise supplements





             Dr Emma Derbyshire, an expert in nutritional physiology at Manchester Metropolitan
             University, reveals natural exercise supplements to make your workout more effective


















             CAFFEINE                            CHERRY JUICE                         RED MEAT                            PROTEIN
             A natural stimulant found in        Cherries are a great source of       (Iron)                              (Essential amino acids)
             tea, coffee, cocoa and colas,       antioxidants, including              Lean red meat is an important       Protein is needed during
             caffeine has long been known        vitamins A and C, as well as         source of essential nutrients,      exercise to offset muscle
             to enhance performance.             anthocyanins – red, blue, and        including iron, zinc and            wasting, which can occur when
             Lower doses of caffeine (about      purple pigments that have            energy-yielding B-vitamins.         protein intakes are inadequate.
             200mg or <3mg per kg body           potent antioxidant properties.       Female endurance runners            High-quality protein, such as
         GETTY X4, ISTOCKPHOTO  improve alertness, mood and   contains these components,   to iron deficiencies and so    can help to maintain muscle
                                                                                                                          that found in fish or red meat,
             mass) are thought to help
                                                 Drinking cherry juice, which
                                                                                      in particular are vulnerable
                                                                                      should try to include lean
                                                                                                                          size and strength, particularly
                                                 may help to reduce
             concentration during and after
                                                                                                                          when combined with
             exercise, with few if any
                                                 inflammation and ease muscle
                                                                                      red meat regularly within
                                                                                                                          resistance training.
                                                 soreness after exercise.
             adverse side effects.
                                                                                      their diets.
                                                                                                                     BBC SCIENCE FOCUS MAGAZINE COLLECTION  57
   52   53   54   55   56   57   58   59   60   61   62