For me I think it's age, length of time I've been running (you can improve for up to 10 yrs. No matter when you start), anemia, and yes, less muscle. This has been a big one for me since crossing over the 45-yr. I have to work so much harder to maintain muscle, and I'm pretty sure this is playing a factor. Confirmation bias is the tendency to search for, interpret, favor, and recall information in a way that confirms or supports one's prior beliefs or values. People tend to unconsciously select information that supports their views, but ignore non-supportive or contradicting information.

44: It Sure Seems Like It To Mend

No man can come to me, except the Father which has sent me draw him: and I will raise him up at the last day.

man.

John 6:65
And he said, Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father.

John 5:44
How can ye believe, which receive honour one of another, and seek not the honour that cometh from God only?

John 8:43
Why do ye not understand my speech? even because ye cannot hear my word.

except.

John 6:45,65
It is written in the prophets, And they shall be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me…

John 3:3-7
Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God…

Matthew 11:25-27
At that time Jesus answered and said, I thank thee, O Father, Lord of heaven and earth, because thou hast hid these things from the wise and prudent, and hast revealed them unto babes…

draw.

John 12:32
And I, if I be lifted up from the earth, will draw all men unto me.

44: It Sure Seems Like It To Memorize

Song of Solomon 1:4
Draw me, we will run after thee: the king hath brought me into his chambers: we will be glad and rejoice in thee, we will remember thy love more than wine: the upright love thee.

Jeremiah 31:3
The LORD hath appeared of old unto me, saying, Yea, I have loved thee with an everlasting love: therefore with lovingkindness have I drawn thee.

and I.

John 6:39,40
And this is the Father's will which hath sent me, that of all which he hath given me I should lose nothing, but should raise it up again at the last day…

Many of the elders had one piece of advice about getting along with one’s adult children: Don’t interfere in their lives, and wait for them to come to you for advice. But what when they do ask your opinion, what are some good ways to communicate?

Tom, 82, has warm and supportive relationships with his three middle-aged sons. He recognizes that sometimes one is called upon to give advice to adult children; indeed, they ask for it. A problem, of course, is that parents are naturally invested in their children, and it is difficult for them to step outside of their own needs to objectively evaluate the choices their child must make.

44: It Sure Seems Like It To Meditate

Tom’s advice: Take the “I” out of the conversation:

Yeah, the big advice is always be open minded. Forget the business of ‘I’ centered and put the focus on ‘you’ centered. The son that you’re talking to and who has issues that he wants to discuss and forget the ‘I’, or at least put the I in the background so that at least he understands that he’s getting the benefit of your wisdom. You, who can govern how much ‘I’ to project, can inject information or guidance when it’s appropriate, not to dominate the conversation but to augment what the son wants to say. I think it’s a delicate balance of diplomacy among family members. I’ve not always done well.

Grace, 75, found that her enjoyment of her children increased as they grew older and became adults; it was the “pay-off” for more difficult earlier years.

I think by the time my kids were a little bit older and they were able to accept their parents for who they were, as I was with my mother, then it was great. I have enjoyed my children as adults so much, so, so much, and it’s something no one ever said to me. They always would say when the kids were young, “Oh, these are the wonderful years, these are the best years.” They were lovely years, but there is something just as lovely or more lovely when they are adults and you could talk to them as another human being. To know your children as adults is great.

She shares her thoughts with her kids, but accepts that her advice may be turned aside.

Well, there again, I think – don’t be too critical. In fact, don’t be critical at all. Accept them, accept what they’re doing. But I for example just wrote my daughter giving her some financial advice, and said, “I’m giving this to you with love not with criticism,” because she just does such stupid things financially. So – and she will read it, and maybe she’ll do it and maybe she won’t, but I’m perfectly willing to accept it that way.