My first thought was Lumosity [1]. I&#x27;d love for these claims to be real, but I&#x27;m just not willing to believe claims like these until I see a significant result in a randomized controlled trial.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Lumosity#Effectiveness" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Lumosity#Effectiveness</a>