A 2006 study on supplying iron to children on Pemba Island was halted after it increased deaths and hospitalizations [1]. High iron levels appear to reduce resistance to malaria [2], so supplying iron tablets to infection-susceptible populations can lead to harm.
While the article makes a strong case for the importance of fighting anemia, these sorts of nuances can make the actual implementation difficult.
For more, I recommend listening to [3], which gave a fascinating link between anemia and the evolution of bacteria.
They are measuring the distribution of energy within the proton. General relativity (GR) describes how a distribution of energy distorts spacetime. They could take these measurements of the proton (if they're complete enough) and compute its tiny effect on the curvature of spacetime with non-quantum GR. Quantum gravity only becomes relevant at the Plank length (~10^-35m) which is still much smaller than the proton radius (~10^-15m) or the resolution of their measurements.
Like most pop-sci, there's enough nuance to be found in the papers to tell its own story. I wasn't familiar with the Shaposhnikov and Wetterich paper, or asymptotic safety in general, and that 126 GeV Higgs mass prediction is the best I've seen. Their paper ends with
"Detecting the Higgs scalar with mass around 126 GeV at the LHC could give a strong hint for the absence of new physics influencing the running of the SM couplings between the Fermi and Planck/unification scales"
which seems surprisingly prescient after a decade of null results from the LHC. So why is this ignored in mainstream (aka not youtube) physics?
Well, a quick search on InspireHEP shows a 2019 paper [1] that adds on Shaposhnikov and Wtterich's. Of note is that an updated top mass value changes the Higgs mass prediction to 132 GeV, rather in tension with 125 GeV. (The paper then cleverly tries to extend the Standard Model to adjust the prediction back to the measured Higgs mass.) The original argument doesn't look like such a slam dunk anymore.
[1] Kwapisz, "Asymptotic safety, the Higgs mass and beyond the Standard Model physics"
https://en.wikipedia.org/wiki/Mathematical_formulation_of_th...