▁that ▁result ▁from ▁several ▁months ▁of ▁daily ▁exercise , ▁ac ute ▁exercise ▁( i . e ., ▁a ▁single ▁bout ▁of ▁exercise ) ▁has ▁been ▁shown ▁to ▁trans ient ly ▁improve ▁a ▁number ▁of ▁cogn itive ▁functions . ▁Re views ▁and ▁meta - anal ys es ▁of ▁research ▁on ▁the ▁effects ▁of ▁ac ute ▁exercise ▁on ▁cogn ition ▁in ▁health y ▁young ▁and ▁middle - aged ▁adult s ▁have ▁concluded ▁that ▁information ▁processing ▁speed ▁and ▁a ▁number ▁of ▁executive ▁functions ▁– ▁including ▁attention , ▁working ▁memory , ▁problem ▁solving , ▁cogn itive ▁flex ibility , ▁ver bal ▁flu ency , ▁decision ▁making , ▁and ▁in hib itory ▁control ▁– ▁all ▁improve ▁for ▁a ▁period ▁of ▁up ▁to ▁ 2   h ours ▁post - ex erc ise . ▁A ▁system atic ▁review ▁of ▁studies ▁conducted ▁on ▁children ▁also ▁suggested ▁that ▁some ▁of ▁the ▁exercise - indu ced ▁improvements ▁in ▁executive ▁function ▁are ▁apparent ▁after ▁single ▁b outs ▁of ▁exercise , ▁while ▁other ▁aspects ▁( e . g ., ▁att ent ional ▁control ) ▁only ▁improve ▁following ▁consistent ▁exercise ▁on ▁a ▁regular ▁basis . ▁Other ▁research ▁has ▁suggested ▁immediate ▁perform ative ▁enh anc ements ▁during ▁exercise , ▁such ▁as ▁exercise - concurrent ▁improvements ▁in ▁processing ▁speed ▁during ▁visual ▁working ▁memory ▁tasks . ▁ ▁Ex erc ise - indu ced ▁eu ph oria ▁▁ ▁Cont inu ous ▁exercise ▁can ▁produce ▁a ▁trans ient ▁state ▁of ▁eu ph oria   – ▁a ▁posit ively - val enced ▁affect ive ▁state ▁involving ▁the ▁experience ▁of ▁pleasure ▁and