For a plain English summary, consider the eLife digest by Helena Perez Valle.
To get an overview on the paper, consider this Twitter thread:
I am very excited to share our latest work published in @eLife! We combined #MEG, #fMRI and #MRI for #BrainAge prediction & #biomarker development. Each modality added unique information & enhanced brain-behavior mapping! https://t.co/iCLYKsuUWY Thread👇 pic.twitter.com/dNEMlGnqXe— Denis A. Engemann (@dngman) May 19, 2020