Sweat and Sports Drinks

Electrolytes are important to feeling well and to keeping a regular heart rate.  

The advertising says the sports drinks replace the electrolytes in sweat, so I looked that up. The concentration of Powerade and Gatorade seem to be about half that of sweat. That is not a problem for me since I believe people need to replace their water at a faster rate than they sweat it out. Meaning that water also leaves by respiration and by urination.

Composition of Sweat

Na       0.9g/L
K         0.2 g/L
Ca       0.15 g/L
Mg      0.0013 g/L

Powerade zero has

Na    0.41g/L
K      0.0907 g/L

The chart at right gives numbers from First Endurance, who makes a sports drink give similar numbers for sweat, and argues for a salt heavy beverage.




Sweat has many other ingredients like ascorbic acid (vitamin C, chloride ion, lactate, urea, creatine and uric acid). Link

Lactate was

Good Articles from GMO on investing

I came across this news letter. It has two interesting articles on why stock prices are so high, and when they will go down. The two articles are "Why are stock prices so high?" by Jeremy Grantham, and The S&P 500 Just Say No by Kadnar and Monteir

https://www.gmo.com/docs/default-source/public-commentary/gmo-quarterly-letter.pdf?sfvrsn=46

GMO is an investment company with $10 million minimums. [Although I see there is one GMO mutual fund listed on Schwab.com.]

Brooks Levitate

I had been waiting for the Brooks Levitate to come out because they have content from co-workers at BASF.  More on shoe design here and here.

I was happy to see that Brooks stepped up the styling for Levitate especially in the Black and Gray color.  I was surprised to see a metallic coating over the midsole. The metallic looks good and shows of the angles of the midsole, like it does on an automobile.

I don't buy running shoes for looks, but after they wear out as running shoes, I will wear them as casual shoes, and the appearance is more important then.

Levitate has a showy metallic coating on the midsole. 

You can see it has knit upper, and the darker part has a coating to stiffen it. The knit upper is soft and comfortable. I had no issue with it binding too tight on my bunion. 

The outsole has this chevron pattern, and I imagine it is for rain and trial running. Often Brook's shoes have a horseshoe pattern, as in the Launch. The horseshoe pattern is supposed to help with heel spurs. Happily I don't have any heel spurs. 🤞

I got a size eleven which had a large toe box, and plenty of room. Maybe a 10.5 would have worked. I wear an eleven in my Brooks Glycerin and a 10.5 in the Launch.  

A size eleven shoe weighed 368 grams. This is heavier than the Brooks Glycerin 15's at 338, the Ghost 9's at 335 and the Launch at 292g. My Adidas Pure Boost is 331, and the Nike Pegasus is 311g. I think these shoes are heavier because they will last longer. 

I took these out for a ten mile run this morning. They were comfortable for the whole run even through the shoes were new. The sole was firm and seemed to grip the road well. I was trying to gauge the energy return, and I can say they are a bit stiff but still comfortable. 

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Brooks Glycerin 15 and Adidas Pure Boost

I never bought a pair of Brook's Glycerins because they were so heavy. I would try them on, and it was just too much foam under my feet. These Glycerin 15's weigh 338 g, which is a tiny bit heavier than my Ghost 9's at 335g, and noticeably heavier than the Brook's Launch at 292 g. (These are in size 11. The size 10.5 were 333 g; that was too small and I took them back.)

I wonder if the new Glycerin 15 is going to be as protective because there only 3 grams heavier. Maybe I should have tried on those Ghosts again. 

The last shoes I bought were the lighter weight Brook's Launch, which I haven't worn too much because my feet have hurt. I am not blaming the Launch, because I haven't worn them much, however, I would have worn them more if my feet felt better.

One of my problems is walking around barefoot too much in the summer. I keep trying to make myself wear sandals, and that is helping slowly.

Do you like the style? The black looks better than the other colors, but Brook's shoes just look like running shoes, while many Nike running shoes have more design. (Of course, I didn't like those as well on my feet.) These Brook's beat the hell out of the Adidas Pure Boost below for style. See below.

Prior to the Glycerin 15's I had purchased these Adidas Pure Boost, which have a big chuck of springy foam on a simple upper and outsole. They feel great to walk around in, but can simply be too soft in the forefoot. They were the only Boost Shoe that was in stock at my local Dick's Sporting Goods. I wanted to try these on, because I have had trouble buying Adidas shoes via the internet because the fit wasn't right. I did not want another shoe that was too small. 

These shoes are 331 grams, just 2 grams less than the Glycerin's that I think are so heavy. 

My other Boost shoes have lasted a long time. Two pairs were retired because of the upper rather than wear on the sole. 

These are about the plainest shoes in the store. They make the Brook's look fashionable. They were only $79.99 which is much less than the $150 that I paid for Boost shoes when they were new. Presumably the upscale ones look better, but my local Dick's didn't have them.  I am guessing Adidas put these low-end shoes out for back-to-school sales. 

I am not so happy buying so many shoes so fast. I hope to rotate these shoes and not buy more for a while.
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Brooks Launch

I got these Brooks' Launch 4 shoes on April 1, 2017. Not sure why I got them, I had just done a race, and I thought my old shoes were a little to heavy for racing in. Also my feet were not sore, so I thought I lighter shoe would be more fun to run in. 

This Brooks shoe is better looking all the other Brooks that I have had. 

I am pretty happy with these. I haven't had sore feet after wearing them despite the relatively thinner sole. 

One shoe weighs 292 grams. My Brooks Ghost 9's weighed 335 g and the my Brook's Ghost 8's weighed 345g.  

I love this image. The color is so bright, and I like how the texture of the sole is visible with the laces fuzzed out. 

For once I took photos before wearing the shoes, and they are clean for a change. 

19 Intrinsic Crimes -- Two Favorite Wine Labels

I was at the wine store. And depraved person the that I am, I bought two bottles because I like the graphic design on the label. The Intrinsic, which is a Cab from Washington State, had a wrap around label, so I took a picture with the panoramic function on my phone -- worked great.

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