For me, Bluejay96, it is definitely hot weather that affects me more adversely than cold. But I live in southwestern Pennsylvania where the cold is not usually extreme.
- Nan

Taking large doses of mestinon, as I did when first diagnosed, meant that if I did much physical in summer or inside in a warm room, my shirt got soaked with sweat. I preferred the cold weather for that reason too.
I think hot showers also weaken many with MG. Some of the MG websites say "avoid extremes or heat or cold."
I like to find the physical reason behind what happens. I googled nerve conduction and extreme temperatures and found this statement:

"Lower temperature cause slower nerve conduction velocities (NCVs), and increased amplitudes of muscle and nerve potentials (Dorfman & Bosley, 1994). ... Decrease in temperature also increases the resistance to conduction of impulses which increase the latencies and decreases the conduction velocity."

That is a mixed statement and does seem to say that either cold or heat can affect us. That said, I prefer cold weather as we are having right now in NW Wisconsin at 0F. Probably the ideal place to live would be Hawaii!


Good luck
Russ

I'm probably on the fence with this.

I live in Scotland, currently, around 35-40F at the moment, won't get a lot colder. I have recently returned from a US trip, Mid West Colorado down as far as Arizona when the temperature ranged from 60-85F. I seem OK with both albeit I generally prefer the cold to the heat. Equally at peace with altitude, it would seem. There again I guess I am in what we might call a stable state with my MG.

Peter

Hi, Bluejay96

i have learned thru my years of mg, that heat as some weeken effects in the body ans ability of functioning,

for me the best temp is around 70 degrees on wich i am able to work outside garden ect, or take a long walk.

generaly speaking i am not a person to by some gadget except this time couple of years ago on which thru the net, was advertised a sun hat, to repell the heat from your head, also you could put it in the freezer,and work to perfection,
so i purchase one for my wife and one for me, very happy with the purchasse,
it did help grandly

also isince very young got a custume of showering with cold wather instead of worm or hot, (tap temp.)

it is very invegorating and facilitate your movements with out be afraid to cramp or others happening

in all you have to find your way around the laberinth that mg throw at us

best of luck
Andre

I live in the southeast of the USA where the summer days are above ninety deg. F for the majority. My symptoms are, for the most part, pretty mild. However, just going outside for a few minutes, especially in the afternoon when I am already not at my best and the heat of the day is at its highest, it feels like my strength is being drained. I will start to feel like I have an extra 10lbs hanging on each arm. My legs feel like I am trying to walk through thigh deep water. Walking up any kind of incline feels like walking up a mountain. If I am outside doing any gardening, it won't be long before I am dropping things. Extreme cold does affect my arms and hands too. We have the odd days where it gets into the mid to high teens in winter. The heaviness of my arms increases and I find that I am unable to pick up or hold objects after going back indoors. This can last several hours after spending some time outside in the cold. For example, I have difficulty picking up a pen and writing, I just can't grip it and I will have to grip hard on anything I pick up or use two hands, otherwise I drop it.

Okay my mg is mostly ocular the best weather for me is 67-68 degrees I have always liked that temperature I have lived in Alaska and I have lived in Arkansas and as far away as Okinawa Japan I have found over the years I like t the temperature to stay around 68 I am an avid summer camper and motorcycle enthusiast I have always liked the cooler temperatures it works for me the one relapse that I had was in the middle of August and the temperature was about 98 Degrees had an incident that completely frustrated me and totally stressed me out and my eyes went double vision took months to recover but on the other end of the spectrum real cold weather will affect me as well that's it so I guess I have issues with the weather as well but not as severe as some of you people in here like I say I always feel lucky where my mg is in comparison to some of you folks here I do not know how you deal with it so well thank you for letting me rant and have a Merry Christmas and a great New Year

Both Heat and Cold can affect me. Generally if the humidity Is low , I can tolerate the heat pretty well as long as I drink plenty of cold water. High humidity tends to Zap me. The cold weather, which we are experiencing now in Chicago will only have an effect if I am out for long periods of time or if it is windy.

I am much more adversely affected in cold weather than hot weather. I do quite well in hot and humid Arkansas summers. In today's 29 degrees, I am uncomfortable, have worse balance, more fasciculations, general ugh! I believe it can go either way.