I think this is the most important thing listed - nutrition, exercise, avoiding social media will allow you to get to an increased attention span, but won't take you there, and meditation will.
The closest meditation exercise I've found that is basically a workout for your attention span is to sit still somewhere quiet and count your breaths, in and out. Breathe in 1, breathe out 2, breathe in 3, etc. It may help to visualize the number as well. Every time you catch your mind wandering, you gently bring it back and begin with the last number you remember. After a cycles of this, you'll find you're able to count for longer without becoming distracted. Do this regularly and see if your attention span on other tasks is increased as well.
Comments
I think this is the most important thing listed - nutrition, exercise, avoiding social media will allow you to get to an increased attention span, but won't take you there, and meditation will.
The closest meditation exercise I've found that is basically a workout for your attention span is to sit still somewhere quiet and count your breaths, in and out. Breathe in 1, breathe out 2, breathe in 3, etc. It may help to visualize the number as well. Every time you catch your mind wandering, you gently bring it back and begin with the last number you remember. After a cycles of this, you'll find you're able to count for longer without becoming distracted. Do this regularly and see if your attention span on other tasks is increased as well.