Oboseala te face sa poftesti dulciuri?

Nu este deloc neobisnuit sa poftesti la dulciuri dupa o noapte in care ai dormit prost. Si, desi majoritatea oamenilor presupun ca este doar oboseala care le slabeste vointa, o analiza din 2024 publicata in Journal of Sleep Research sugereaza ca, de fapt, biologia ar putea fi de vina.

Cercetatorii au analizat rezultatele a 13 studii si au descoperit ca dormitul mai putin de 6 ore pe noapte creste cat de mult iti plac aromele dulci, ceea ce probabil te impinge sa alegi mai des alimente bogate in zahar.

Nu este inca clar de ce creierul obosit tinde spre zahar, dar exista cateva teorii in lucru. Una dintre ele este ca lipsa de somn scade nivelul de dopamina - substanta chimica ce face lucrurile placute sa para satisfacatoare - asa ca, creierul cauta dulciuri pentru a-si „reincarca rezervorul”. O alta posibilitate este ca somnul prost creste valoarea de recompensa a alimentelor in general. Adica totul are un gust mai bun cand esti nedormit, ceea ce face si mai greu sa rezisti tentatiilor dulci. Aceste constatari se aliniaza perfect cu tot mai numeroasele dovezi care arata cum somnul influenteaza obiceiurile noastre alimentare.

De exemplu, cercetarile arata ca somnul scurt creste aportul caloric si ne orienteaza spre alimente mai indulgente. De asemenea, arata ca lipsa de somn perturba hormonii precum leptina si grelina, ceea ce te poate face mai predispus sa mananci in exces.

Acest lucru ajuta la explicarea motivului pentru care oamenii de stiinta recunosc acum somnul insuficient ca un factor de risc esential pentru cresterea in greutate si obezitate. Din fericire, solutia necesita un efort surprinzator de mic.

Intr-un studiu, persoanele care au dormit cu doar 20 de minute mai mult pe noapte au redus aportul zilnic de zahar cu aproape 10 grame. Un alt studiu a descoperit ca prelungirea somnului cu putin peste o ora a dus la consumarea cu 270 de calorii mai putin pe zi - o schimbare care a dus rapid la pierdere de grasime.

Toate acestea sustin un adevar greu de ignorat:

1. Pentru ca slabitul sa para mai usor, dormi mai mult.
2. Pentru majoritatea oamenilor, asta inseamna sa doarma intre 7 si 9 ore pe noapte.

Referinte

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